works like it says! By reef geek on 3/14/14
reef geek would recommend this product to a friend
works perfect on my acrylic just have to wash the pad a little to make sure theres no sand or debris and you wont scratch otherwise yes it is very powerful magnet and will leave a nice owy
Pay attention before use! By AlexL on 2/6/14
AlexL would recommend this product to a friend
It works just as stated. Only thing you must be careful with is that the magnet catches from the back side of the scrubber also. And if there's any hard build up, and you swipe, you more likely will scratch your glass. That's how i got a 6 inch scratch in my front glass :(
So please be aware of what side it's on before use.
Other than that its the best magnet scrubber ever used.
Great product By Smallreef on 1/14/14
Smallreef would recommend this product to a friend
I have always had Mag floats; but with this new very thick acrylic tank, it just wouldn't hold on, let alone clean anything. Ordered the Floating Tiger Shark and I have to say I am very pleased; not only with its hold...these magnets are strong, but the cleaning ability, and the extra pads included. I feel this magnetic cleaner will last me much longer than any product I have previously used.
great product and very strong magnet By turbotone on MR on 1/13/14
turbotone on MR would recommend this product to a friend
I've owned a few different types of magnetic cleaners and these are above them all.. what i would recommend is do not go with the plus 1 method with these bad boys.. get what your need in your size criteria.. these magnets are strong!!! a few swipes and its clean.. i could only imagine a stronger one will be very difficult to move.. definitely would recommend..
Beast mode magnet By Collin on 12/15/13
Collin would recommend this product to a friend
This magnet is industrial strength. After a few pushes across the glass, your arm will get tired---and that's a good thing! Lots of power to clean those stubborn algae spots.
I highly recommend adding the algae scrapper with this magnet. Adding the algae scrapper lets you easily scrape away coraline algae.
This is easily one of the best investments I've made for my tank. The upfront cost may seem like a bit much, but in this hobby, you get what you pay for. Totally worth the purchase.
It also includes an extra felt and scrubber pad.
Tip: Keep the magnets apart when not in use, or else you'll stick the felt onto the cleaning pad.
Best magnet I ever owned By Matt on 12/6/13
Matt would recommend this product to a friend
I purchased the Piranha Float black Fri/ The magnets are SUPER strong! You really have to put some effort into it in order to get it to slide. It gets the glass clean in only 3-5 passes.
Good product By Shawn on 11/5/13
Shawn would recommend this product to a friend
These glass cleaners work extremely well and will remove calcified algae from your glass with little effort. I find the pads don't wear nearly as long as I'd like but with magnets this strong it's easy to understand why. I find if I use glass polish before cleaning my glass things move much more easily and makes the felt side last long due to reduced friction.
Worth every penny! By Roy on 8/23/13
Roy would recommend this product to a friend
I purchased the Hammerhead a few months ago and love it. I used a mag float before and with my 1/2 inch glass it would fly off if I went too fast. The hammer has a very strong magnet the will smash your fingers if your not careful with it. I used to worry about scratching my glass but not with this one.
Very good product and worth the high price
AS ADVERTISED. BEST CLEANING MAG ON THE MARKET. By Chicago C4 on 8/21/13
Chicago C4 would recommend this product to a friend
This product proves you get what you pay for. I don't see myself ever buying another brand cleaning magnet again. Bought the Hammerhead, and it's exactly what you expect -- awesome, plain and simple. Definitely more expensive than others, but absolutely worth it.
Powerful! By Chad on 7/23/13
Chad would recommend this product to a friend
I purchased the Piranha Float when I first set up my saltwater tank. The magnets are SUPER strong! You really have to put some effort into it in order to get it to slide, otherwise the cleaner kind of "skips" along the glass and can splash the water around a bit. It gets the glass clean in only 3-5 passes. Other cleaners could take up to 10-15 passes. It is a little bit beefy and bulky, and can be hard to fit into tight spaces, so I purchased a smaller, weaker magfloat to clean the glass right next to the powerheads.
just too powerful for my 50 gal By Joe on 5/25/13
Joe would recommend this product to a friend
I pickup the Piranha float, but I just find it a little too large and powerful for my 50 gal tank with 1/4" glass, so I find myself using a smaller mag-float instead.
Strong Magnet! By Dan on 5/22/13
Dan would recommend this product to a friend
This cleaner has a super strong magnet in it. To the point where I start to put pressure on the stand (30g). It cleans well, but the price needs to come way down. It's a block of wood with some felt and a plastic block with velcro...
pay attention to the size recommendations By tramboneplayer5 on 5/18/13
tramboneplayer5 would recommend this product to a friend
I used to have a 55 gallon tank and was planning to upgrade to a 140 gallon tank. I did not want to buy the piranha and then have to buy the hammerhead a few months later, so I just bought the piranha. I had to insert a washcloth and use the acrylic pad on my 1/4" glass because the magnets were so strong it would almost scratch the glass. Now that I have the proper sized tank for the magnet it works wonderfully. Looks good too.
Works great By Trojan on 4/7/13
Trojan would recommend this product to a friend
I have only used this twice so far and it works great no issues straight out of the box ready to go.
works great. By Berg on 4/6/13
Berg would recommend this product to a friend
Gets the pink coraline algae off pretty easily. never had a mag work this well. I also bought an add on scraper but haven't had to use it.
Very nice By Don on 3/27/13
Don would recommend this product to a friend
I picked up a hammerhead for my new 155. I really like the quality of this thing. It looks well made and has a much better appearance than the mag floats.
Great on my 3/4" acrylic By Mike on 3/25/13
Mike would recommend this product to a friend
I bought this cleaner for my 3/4" thick acrylic display tank. The magnets are strong and give a very good scrub to the inside of the tank...glad I spent a few extra bucks for this model. Much easier to keep up on my maintenance, I was getting tired of trying to clean in 30" of water from above with other tools!
Get's those stubborn bits off! By Sandra on 3/10/13
Sandra would recommend this product to a friend
An excellent glass cleaner. Very strong magnet that is capable of removing those stubborn bits of algae on the glass that aren't touched by the cheaper versions. Also, esthetically more pleasing than a hunk of plastic stuck on the outside of the glass. Bought two, will buy another for my 3rd tank.
actually does what you want it to By monkiboy on 3/9/13
monkiboy would recommend this product to a friend
excellent product. comes with extra pads for both sides of the glass (smooth sliding and algae destroying. VERY strong magnets. does the job. don't be overzealous and get larger than needed. use the suggested ones for the glass thickness you have otherwise you'll be getting a heck of a work out and putting your glass in potential danger.
really enjoying this product. it is my second!
Good magnet By Matt on 3/6/13
Matt wouldn't recommend this product to a friend
Good magnet, not great. Much Stronger than a magfloat, but does not seem to clean any better. This float still does not remove stubborn coraline or other thicker algae. The strong magnets are not really needed to remove the types of algae this scrubber handles well.(film algae)
I'm using on 1/2 inch acrylic so it may be slightly undersized. I like it, I'm just not thrilled, maybe my expectations were just too high.
hamer head mag By peter on 1/28/13
peter would recommend this product to a friend
I have the hammer head mag. I had what I thought was a problem. I emailed Mark told him I picked up the Hammerhead at brs and his service was second to no one !!! I see why BRS sells the Algea free mag and why I will never think at all about buying any thing from them again , and yes its great also buy the scraper blade it takes any thing off.
The best cleaning float money can buy By Edward on 1/28/13
Edward would recommend this product to a friend
Not only does it clean better (stronger magnets) than traditional mag floats, but it also looks really classy on the tank. I leave it on the front of my display along the sand bed - it looks that good! And the fact that it comes with spare/replacement cleaning pads is a really nice touch! Don't look elsewhere - buy this for your tank.
Best Ever By Mattyp on 1/11/13
Mattyp would recommend this product to a friend
this is the best algae cleaner ever !!! The price is a little up there for what it is But the price is well worth it!!!!
Not too happy... By Scott on 1/7/13
Scott wouldn't recommend this product to a friend
After paying almost 100 dollars on the Tiger Shark and only having it for a couple months and the outside liner started peeling away leaving a sticky residue all over the outside glass of my tank.
I have since taken the liner off and use a small soft pad there and it works famously, but I shouldn't have to "rig" an item that costs this much after a couple months of use.
Best Algae magnet I've tried By CY on 12/14/12
CY would recommend this product to a friend
I used the usual MagFloats and tried the Magnavore as well. I always go back to the trusty ALG magnet. Best balance of quality, performance and price
great cleaner By chi on 11/11/12
chi would recommend this product to a friend
takes all the algae off my tank in one sweep, only problem is the magnet is way too strong that it is giving my arm a work out on my 29 gal tank. but cleans so much better than my mag float
Awesome By Brando on 10/28/12
Brando would recommend this product to a friend
I'm new to the hobby. As you know, constant water changes, putting in live rock, figuring out the equipment, etc., has left little time to actually enjoy my work. I've cleaned the front of the tank 4 or so times with windex, but it was always smudged. I got this on a whim and it is amazing. All my work is viewable crystal-clear. Trust me... reward yourself and get this. It's not a necessity, but makes the tank the work of art that you worked for.
Don't look anywhere else By Jeff on 9/20/12
Jeff would recommend this product to a friend
This cleaner is by far the best on the market. The magnet is crazy strong and the optional razor blade attachement makes getting hard algae off very easy. My tank has never been so clean!
Look no further By Patrick on 9/10/12
Patrick would recommend this product to a friend
Other magnetic glass cleaners I've had in the past aren't strong enough to stay together and do a poor job of cleaning. The tiger shark magnetic glass cleaner is nothing like those. The magnet is strong enough to stay together through thick glass and has a tough cleaning pad for algae. Don't waste your time looking at anything else.
great By evan on 9/9/12
evan would recommend this product to a friend
best magnet on the market
Awesome By Brad on 9/6/12
Brad would recommend this product to a friend
I don't know what I would do without this! I have a 210 gallon Marineland and this is strong enough to hold on my thick glass. I bought the Tiger Shark and its perfect. I wish other parts of reef keeping were this easy.
So much better than the cheap ones! By Casey on 8/29/12
Casey would recommend this product to a friend
I've always ran the cheaper magnets and I aquired one of these with a tank I recently purchased and all I can say is wow. Not even on the same level with the others. It grabs/cleans way better than the rest, yes its a bit more pricey. But honestly, after using it, I dont think I could buy a cheap one again. Worth every penny.
Great! By Steve on 8/14/12
Steve would recommend this product to a friend
Love this cleaner. Works great and it's fun to try and get it around corners. Makes cleaning the glass easy and fun.
Must Have! By McKay on 8/10/12
McKay would recommend this product to a friend
I would consider this a "must have" item for anyone who takes this hobby seriously. Makes light work keeping your glass sparkling clean. Only heads up... be careful around the gravel line - especially if you have fine sand/gravel. These magnets are extremely powerful, and if anything gets caught in the pad it's very likely to scratch your glass. I usually use this to a half inch or so above the gravel line and use a kent scraper for anything below that.
Just about worthless By Nathan on 8/3/12
Nathan wouldn't recommend this product to a friend
I really wanted to like this magnet. It's outer wood shell is stylish and it floats. The problem is for my tank it's just too powerful. I have a 55g glass and the magnet skips around like a 1950's record player. There is no way to get it to slide across the surface of the glass.
I've tried going up, down, fast, slow, etc. It just skips. I'm assuming that although it's listed for my thickness glass, that it's just to powerful. Oh, and keep your fingers out of the way of this thing. It looks like it could do some damage if you got your fingers caught in between the two magenets slamming shut.
Now I'm out ~$50 and don't have a functional magnet.
buy no other By fr0g on 7/28/12
fr0g would recommend this product to a friend
open your wallet and have more time enjoying your tank you wont be sorry
Great for glass By David on 7/12/12
David would recommend this product to a friend
Great product with extremely strong magnets that enable you to remove even the crusty stuff with just a few passes. I use it on 1/2 inch starphire and it works like a charm.
I would be hesitant to use on acrylic however. One sand granule or other substance harder than acrylic and you just turned your tank into a scratched up mess.
Strong Magnet By Patrick on 7/9/12
Patrick would recommend this product to a friend
I use 2 of these on my tanks the magnet is super strong and cleans fantastic. I have used cheaper brands and they were ok. I tried one of these and will never go back to the cheaper magnet cleaners.
Performer! By Tyler on 7/7/12
Tyler would recommend this product to a friend
Very strong magnet, cleans well, and is extremely sturdy!
quality chang pads By peter on 7/3/12
peter would recommend this product to a friend
I have had other brands in the past. This works fast and if you ever wear it out you can replace the pads. Buy once and pay a bit more but in the long run you come out on top
Excellent performance, but pricey By gbr_huskers on 6/29/12
gbr_huskers would recommend this product to a friend
This cleaner works like a charm and is an excellent upgrade to the scrubber I previously used. I have to admit, however, that it costs more than it should. The magnets are super strong and it cleaned both sides of the glass to a sparkling clear finish. Hard to say that the results justify the price, so value was rated medium for me. I don't regret the purchase.
best of the best By Nicholas on 6/18/12
Nicholas would recommend this product to a friend
This is the best mag cleaner I have encountered..magnets are strong which means only one pass is needed to clean the algae off the side of your tank
Does great on my 90g glass By Tony on 6/5/12
Tony would recommend this product to a friend
Very strong magnet. Great scrubber. Great value. Love the extra felt and scrubber. Solid product.
Almost too much. By Harry on 6/5/12
Harry would recommend this product to a friend
I have 120 glass with .5" thick glass and I think i could have gone smaller on the magnet strength. Performs almost too well.
preformance By Hector on 6/4/12
Hector would recommend this product to a friend
GREAT MAGNET BYE BYE ALGE I WAS HAVEING A BIG PROBLEM WITH ALGE NOT THE GREEN STUFF IT WAS SOMETHING LIKE BROWN SPOTS. I ALWASY USED TO USED A SCRAPER FROM KENT PRODUCTS ALSO I HAD A MAGNAFLOAT MAGNET I WAS DUMPING MY MONEY TRYING TO GO THE CHEAP WAY. BUT I LEARN MY LESSON BETTER SAVE A COUPLE EXTRA BUCKS, TO GET A GREAT PRODUCT.i HIGHLY RECOMMENDED THIS MAGNET TO ANY ONE OUT THERE TRYING TO LOOK FOR A GREAT MAGNET. BE SURE TO FOR YOUR THICKNESS IS VERY IMPORTANT MY IS 1/2 ONTHE SIDES AND 1'' ON THE BACK & FRONT.
Great! By Nicholas on 6/1/12
Nicholas would recommend this product to a friend
Great magnet, Ive had my 210 gallon tank going for over a year and havent used a magnetic cleaner on it till now. I wish I would have got one a lot sooner!
All five stars if you have glass! By Charley on 4/25/12
Charley would recommend this product to a friend
Awesome magnet, works well, worth the seemingly steep price. It works well on acrylic tanks, but you need to be a lot more careful. If you own an acrylic tank, you're probably used to that, though. Specifically: With glass I'd leave the magnet in the tank at all times, but with acrylic I don't want to risk something growing in it that will scratch. So taking it out every time is sort of a pain, but not a huge deal.
Very Strong Magnet By Mark on 4/18/12
Mark would recommend this product to a friend
Great for removing tough coraline algea, works best when combined with razorblade attachment.