- Ceramic Biomedia Plate - MarinePure
Why does BRS recommend this?
Biological filtration is the number one key to a nice and stable reef tank, and anytime we can sneak in some MarinePure Biomedia into an All in one tank, sump, or even overflows we will. We have run density tests and they have proved to be more porous than any live rock we could find. They are a great base for sponge growth, microfauna, and even coral frags.
MarinePure is an inert ceramic material with open flow architecture, extremely high surface area and natural wetting properties. 5,750 square feet of surface area. Resistant to clogging and greatly reduces tank maintenance.
The media’s composition is similar to natural rock formations. MarinePure provides approximately 150,000 sq. Ft per cu. Ft (510 m2/L) of accessible surface area. The properties of MarinePure create a stable home for a dense population of beneficial bacteria that remove ammonia and nitrites from your aquarium. Some systems will also see a decrease in nitrates. MarinePure will work in sumps, trickle filters, wet/dry filters, hang on the back filters or directly in the tank.
- 100% Tank Tested
- Most technically advanced bio-filtration substrate
- High usable surface area for beneficial bacteria growth
- Open porosity means maximum bacteria exposure to contaminates and promotes excellent water circulation and less clogging
- Designed specifically to target ammonia and nitrite removal and minimizes nitrates
- Inert and chemically stable
- Greater than 80% open porosity
- Provides consistent water chemistry
- Reduces tank maintenance
- Able to support large fish loads
- Can be cleaned, reused and sterilized
Compare MarinePure Products
Surface area (per indvidual piece)
1½” Marinepure Sphere: 240 sq ft
2" Marinepure Cube: 720 sq ft
8"x8"x1” Marinepure Block: 5,750 sq ft
8"x8"x4”Marinepure Block: 23,000 sq ft
Spheres & Cubes
MarinePure Spheres are small, spherical filtration media for use in canister and similar filtration systems. Perfect replacement for bioballs. They are available in 1½” diameters spheres or 2" cubes.
• over 100 times the surface area per cubic inch than any other biomedia such as bioballs
• Stays wet during power outages or pump failure which will keep your nitrating bacteria alive
• Perfect area for copepods and amphipods to thrive and reproduce
• Wet-dry filters
Leaches Aluminum By Andrew on 1/21/2020Andrew wouldn't recommend this product to a friendI bought a 18 inch wide Elegance coral from someone who had it in their tank for 3 years. For the first 4 months in my tank it was doing great as well. Then I decided to add 5 of the big blocks in my tank, and within 3 weeks the coral shriveled up. So I decided to do a Triton ICP test and sure enough I had 294 ug/l in my tank (reference: sea water should be at 2 ug/l). After removing all the blocks and doing 2 30% water changes, I sent in another test a month later. Currently, my Al is now down to 56 ug/l and hopefully over the next couple months I can get it even lower. I fully blame these blocks for my high AL, and killing off my elegance coral (yes, I ended up dying).
Aluminum By andrew on 3/1/2019andrew wouldn't recommend this product to a friendSetting up a new tank. The stuff is already “crumbling.” I’m not touching, it just seems to be deteriorating. On top of that, I have found some extremely respected folks that have conducted triton tests and other tests (ie there are plenty of reviews on R2R.com) that show it is leaching aluminum. Certain folks appear to not have a problem, but if you are planning to grow soft corals (aluminum doesn’t appear to impact sps coral as much as soft) then I really don’t recommend this. I don’t feel like chasing aluminum removal for my tank. I am removing them such as to not start off on the wrong foot. Wish I had come across these reviews and experts before buying. Make your own decision, but for me, these tests and very well debated concerns is evidence enough to not mess with it. It’s very compelling evidence.
turns to sand By chris on 2/14/2019chris wouldn't recommend this product to a friendafter sitting in low flow area of my sump (about 6 mouths ) the 4" block is falling apart, turning to sand.
Excellent By Bow69 on 6/17/2018Bow69 would recommend this product to a friendBroke up into 2" pieces for my cute area. Pod houses. Seems to be working great.
Great product By Sgt Harold on 4/11/2018Sgt Harold would recommend this product to a friendI own 12 of these now they give great surface area for bacteria to grow
Worth it! By Tom on 3/8/2018Tom would recommend this product to a friendI added the 8x8x4 plate into my 34 gallon sump along with the spheres. My nitrate levels dropped from way to high (100ppm) down to about 20ppm in 3 weeks. When I added this, I also added pods and live brine to help get it going. Yes, it is fragile, but as long as you are careful, it isn't that bad. I wouldn't expect cermic with this structure to but super strong anyway.
Didn't work for me By Jared on 11/22/2017Jared wouldn't recommend this product to a friendWe already have plenty of rock in tank no ammonia nor nitrites. Was trying to see if this would help with nitrates. It sadly has not worked for me. And it does crumble and make a mess after it has been in water for awhile
Fragile By Vinny on 11/19/2017Vinny would recommend this product to a friendLowered my nitrates but after about a year I went to move it’s location from 1 chamber of the sump to another and it completely broke apart into sand. Beware where ever u place this thing will have a lot of loose particles if touched or moved. GL
Great product By ReeferQ on 11/19/2017ReeferQ would recommend this product to a friendHad trouble with rinsing. Took longer than expected. Been using for 7 months now and have had no negative affects shown in the BRS investigates about the trates rising back up. Keep in mind. They had no skimmer to lighten the load on the anaerobic process. To begin with this, I recommend dosing vinegar for a week or two to really populate the bacteria in the tank. That, along side with a bunch of rock in display, should really get this dialed in to see your trates drop within the first few weeks. Good product. Ridiculous how porous it is.
get the bigger one By Jack on 8/9/2017Jack would recommend this product to a friendThis stuff is great, holds a bunch of bacteria. But YES, it IS very fragile. Think of it as a big crumbly chocolate chip cookie with holes (seriously) in terms of structure. Also, the 1" version is more than half the price of the 4" version. Which means for less than double the price of the 1" version, you can get the 4" version = which is FOUR times the product at less than double the price. Get the bigger one, and use a hack saw to cut it to your desired size.
This really works! By Gerardo on 7/19/2017Gerardo would recommend this product to a friendI've had my phosphates and nitrates at reasonable levels. After I put the 8×8×1 block in my levels dropped about 1.5 in phosphates and nitrates. Now I'm at about .05 or less phosphateso and 0 on nitrates. I installed it in a 125 gal. tank with a 75 gal. refugium.
Not for me By danny on 7/10/2017danny wouldn't recommend this product to a friendPersonally purchased this to help with nitrates which seems to be the only reason we have lingering algae. Product did not work for me - still dosing vodka for nitrates and still have algae. YMMV
I am looking to slowly trade out some of my rock in the display for marinepure in the sump to open things up a bit. Is there any ball park estimate on how many pounds of Fiji rock one of the 8x8x1 plates will replace?
Generally speaking the 8x8x1 plate is enough surface area to handle a 100g tank on its own, so you should have the ability to remove quite a bit of rock. Just make sure to do it slowly so that the tank has time to adjust and the bacteria that are getting removed have time grow in their new substrate.
Is it best to cure the marine pure first and then seed it separately? Rather than just placing in in the sump? Or is either way good?
I'm setting up a 300 gallon tank using 250 lbs of reef saver and 50 lbs of tonga plate for the display tank. If I wanted to add marine pure as a supplement for biological filtration to the sump would 1 8x8x4 be sufficient?
Does the 8x4 block interfere with Zeovit system? I am currently using the marine pure block (8x4) and I am considering converting to zeovit.
How long will it last? Many of the reviews say it will turn to sand in months.
They are very brittle but they do not turn to sand, I have kept the same ones in tanks for multiple years.
Maybe a good addition would be to list on the description is how many gallons the 8x8x1 slab is rated for? Same with the 8x8x4 and each sphere, obviously some live rock will need to be used in the DT, but if I only want a minimal amount, knowing how much marine pure I can use in place of LR would be helpful, surface area isn't helpful as the recommendation is in pounds of LR per tank size.
Thanks, love the services you provide, and I am following the BRS 180 diligent each week.
That is a great idea! In the meantime to help I have included a link to all of the information about tank size and marine pure size. It is divided by Nitrification (the same as live rock to convert ammonia to Nitrates) and Denitrification ( in an anaerobic environment to convert Nitrates to Nitrogen gas) Feel free to let us know if you have any further questions!
What is the weight of the 8x8x4 block?
The large block will weight just under 3 lbs. Feel free to let us know if you have any further questions!
Can I put this in my fuge with about 5 lbs of live rock on top of it and still be ok
You certainly can add this into your refugium under the live rock. Depending on the placement the marine pure can work to replace the live rock as surface area for bacteria to convert ammonia into nitrate, or in low flow anaerobic environments can convert nitrates into nitrogen gas. Feel free to let us know if you have any further questions!
Do I need to cure this marinepure? Can I put it straight into my sump?
Its seem this product could be used as both a denitrification tool and a nitrification tool. So with that being said should we purchase two, one for a high flow area and the other for a low flow area so that we can take advantage of both of its abilities? I'm thinking of using this product in a new 90g build with a large sump. Please advise how you would set that system up using this product.
You can certainly use this in both high flow and low flow areas to create the different environments within the system! You can select 2 different plates in the different areas to attempt to achieve a low oxygen environment to help convert some nitrate into nitrogen gas. Feel free to let us know if you have any further questions!
Hi guys, I'm new at this so please forgive me if my question turns out to be a silly one! 100% inspired by Ryan I'm about to embark in a 300 gl reef tank based on the Triton method. Already built my tank and now need to design my sump tank. My question is as follows: Because of the Triton method, can my refugium consist only of 10 Marine Pure 8x4 blocks and no algae, no nothing else at all?
The Triton Method utilizes a refugium with algae for nutrient control. Ceramic media does not remove nutrients in the same manner that macro algae does and couldn't be considered an alternative to a refugium. You could absolutely try it out to see if it will work for you, however to follow the Triton Method in its entirety you would need to follow their specific methodology which includes a refugium. :-)
I am thinking of getting an 8x8x1 plate of this to put in the back chamber of my AIO nano tank, but I don't think any of the chambers are big enough. Is it possible/adviseable to cut the plate down to size?
There is no positive or negative to using broken marine pure, the surface area will remain the same. Feel free to let us know if you have any further questions!
I didn't do what the instructions said, all I did was rinse the plate for 1 minute. Am I fine? Also this thing is making lots of dust in my sump. Is that normal? My tank was recently setup.
Will this media have to be removed at some point for cleaning?
It does not need to be cleaned and can be left just as standard live rock would. However sometimes detritus and other elements can grow on it which may make cleaning nicer to keep the sump or area clean. Feel free to let us know if you have any further questions!
I want to add a block to my system. I have a JBJ45 gallon AIO tank with a trigger systems cube sump.
Can I put marine pure in the center section of the JBJ or down in the skimmer section of the sump? I don't want to put it in the refugium section as I'm concerned about the size
Is there any way to cut an 8x8x1 plate?
This is fragile enough to be broken by hand if needed, otherwise a simple hack saw can be used for an even cut.
The product description mentions I can place MarinePure plates below the substrate in my new tank. By using this method versus placing them in my sump, how much (if any) of the plates effectiveness am I losing?
The performance will not change however the type of bacteria may change. With the buried media it will possibly harbor anaerobic bacteria which can convert Nitrate into Nitrogen Gas. If the media is left in a high flow area of the sump it will act just like standard live rock and harbor bacteria which can convert ammonia into nitrite and nitrate. Feel free to let us know if you have any further questions!
Can this material be cut or broken to a specific size?
Would you guys prefer this media before or after cycling of a new aquarium?
Is there any difference on wheter i put it in now or wait til' the cycling period is finishe
I'm currently cycling a new Triton tank and have heard that Marine Pure might not be the best choice for a zero water change tank (results in high levels of aluminum or other undesirable elements per some forum discussions I've seen). Have you guys found any truth to this and are you running Marine Pure on your BRS 160 Triton?
We have used this product in many of our tanks here in the office and have not seen any negative effects so far. There has been no conclusive data on whether or not this product releases a toxic level of aluminum into a system. We used to run it in that system, but it was removed to make room for macroalgae.
Have a great day!
Researching these blocks online one of the issues could be leaching aluminum causing coral health issues. Have you seen any issues with this?
We have been using MarinePure in our systems for several years and many of us use them on our personal tanks. We have not found any issue from running the MarinePure. We have seen posts about testing showing a form of aluminum silicate however this has not impacted the health or growth of our tanks. Feel free to let us know if you have any further questions!
I am considering placing a bio block in my sump tank. How often and how to properly clean these blocks?
There are a few different ways and methods to clean the blocks. First of all if you have passive flow going around the blocks you may never need to clean them. We do suggest every month or so giving them a rinse to remove any built up detritus and other matter that will settle in the block. I personally will just fill a 5 gallon bucket during an water change and give it a good rinse while swooshing it around in the bucket. Then simply just placing the block right back where I took it from. Others like giving them a rinse in fresh salt water a bit more often but that is most likely just more work than you need to do.
Have a great day! : )
How much marinepure should I get for my biocube 32? I am primarily interested in the denitrification
Can the blocks be cut in a way that they won't crumble or fall apart?
These blocks can be cut rather easily with items as simple as a Hack saw. Unfortunately they are still a little fragile with the amount of surface area and breakage may occur while cutting. Feel free to let us know if you have any further questions!
Can I cut the 8"x8"x4" block into smaller pieces? It's really a big piece and takes up a good amount of space.
These can be cut using a hack saw if needed! Feel free to let us know if you have any further questions!
Do you need to occasionally wash these down or clean them?
It is recommended that they get rinsed once every couple months however not completely needed. We like to rinse them in a bucket of old tank water every now and then to release any loose detritus that may be trapped.
Thanks for the question and have a great day!
Where did the cubes go?
I have included a link below to the Marine Pure cubes. Feel free to let us know if you have any further questions!
Does the Marinepure material absorb phosphates? I would like to add the Marinepure to my tank which has >5 ppm phosphates prior to removing my live rock that is loaded with phosphates. My challenge is that this is a 300g tank and I do not want to tear the tank down. Once I remove the live rock, my plan is to use your GFO.
I want to purchase some MarinePure I have a 150 gallon tank would one plate be enough or should I
get a block, is there such thing as over kill?
Hello BRS. I would like to put 2 of the 8x8x1" MarinePure blocks into my Emerald 39 Sump. I was thinking of putting them on edge standing up on the baffle between the skimmer and fuge sections, where the Trigger symbol is cut out. This would put some in a higher flow area and some in a low flow area. I am running about 4-5 x turnover through my sump with about 130 gallons of water in the system.
Question is, will these allow enough flow through the sump or will they block the flow through the Trigger symbol and cause the water to flow over the blocks?
Can the marinepure plates be cut to fit in a sump.
Have a great day!
I have a small sump but would like to place a 8x8x4 block on it's side rather than flat. Will this work this way?
These will of course work as live rock media and can be placed in any position. Just serves as surface area for the system to grow healthy bacteria.
Can anyone confirm that Marine pure releases aluminum in your REEF tank!
I have read that MarinePure leaches aluminum into the water, i am going for minimal amounts of live rock in my DT. I would like to make sure that i have enough biological filtration in my tank by adding MarinePure to my sump. Have you heard of MarinePure leaching aluminum and what is your opinion on this? I am a big fan of BRS and really appreciate the information you provide, thanks in advance!
We have indeed see the posts on the aluminum leeching however to that we have used MarinePure for several years on every office tank without side effect. While the test may still be out we have not found a negative impact of Marinepure and still recommend it for supplementing the biological filtration. Feel free to let us know if you have any further questions and we will be more than willing to help.