- Reef Octopus Classic 90 Hang-on-Back Protein Skimmer
Unique skimmer design with cylindrical body which uses the siphon to feed water to the skimmer. This reduces the load on the pump while increasing the air intake.
- Rated for aquariums up to 100 gallons
- Powered by Aquatrance 1000 Pinwheel Pump
- Design reduces turbulence
- Capable of surface skimming
- Collection cup is easy to remove to empty
Well Stocked Tank - Rated up to 75 gallons
Medium Stocked Tank - Rated up to 90 gallons
Light Stocked Tank - Rated up to 100 gallons
- Traditional body design
- Air silencer
- Pump mounted externally on skimmer
- Easily remove collection cup for cleaning
- Solid construction
- Control - precision output valve
- Removable turbulence reducing bubble plate
- Body Size: 4"
- Footprint: 7.5" x 7.5"
- Total Height: 23.8"
Aquatrance 1000s Pinwheel Pump Features:
- Power Consumption: 9 Watts
- Air Draw: 420 lph/15 SCFH*
- Water Draw: 350 lph/92 GPH*
*Aquarium set up will determine air and water results.
- 2 year warranty on pump
- 1 year on skimmer body
Item #: OCT-BH90
Works great By Blaine on 10/19/2019Blaine would recommend this product to a friendThis skimmer works great right out of the box, minimal break in period if any. It has produced dark dark skimmate for about a year and a half for me now with no tweaking. I have a medium bioload in a 75 gallon tank and the cup fills completely after about 2 weeks or so with a satisfyingly disgusting dark smelly liquid. I honestly enjoy this hob skimmer more than my internal 250 regal series reef octopus in my other tank, it’s a little- powerhouse. And quiet. Great bang-for-buck.
Seems solid so far By Nick on 4/2/2019Nick would recommend this product to a friendExtremely high build quality. This was my first time buying a brand new name brand skimmer. It makes the other ones I've had feel like little toys. The assembly instructions are a little vague but just follow the picture and it's not bad, just don't forget all 3 o rings. Also don't forget to prime the pump! I was lost for like an hour trying to figure out why the pump couldn't pick up any water and it finally dawned on me. Just hold the air line kinked until the air is out. It's still breaking in for another week, but I've already gotten a bit of gunk in the cup. Looking forward to seeing what it can do!
Excellent By Waynefox on 1/16/2019Waynefox would recommend this product to a friendI bought this used had a seaclown skimmer and as soon as I plugged it within 5hours already pulling dark bubbles to collector cup
Dont buy for aio By sean on 1/3/2019sean wouldn't recommend this product to a friendI have a jbj 45 aio. If it's on the back it will not reach the water. It's a hang on the side not back for me... I'll buy some pipe and mod it but for $200 I shouldnt have to.
Great HOB By Bob on 10/30/2018Bob would recommend this product to a friendHad Reef Octo 100 HOB, but this is far more effective in my opinion. I agree you need to adjust the air intake, but the amount of bubbles and removal of skimmate is very good.
Ultimate Protein Skimmer By Eli on 9/17/2018Eli would recommend this product to a friendThis protein skimmer is a beast when it comes to removing all the organics floating in my water. The adjustability is really spot on and allows you to dial it in exactly where you want it. The pump is relatively quiet. No louder than your average protein skimmer (Normal hums). I sleep with it less than 5 feet away from me and it does not bother me at all. Packaging was great and was extremely easily to set up/install. Break in period was fast (3-5 days). I expect it to last me a long time because the build quality is very good. I would recommend this to anyone looking for a skimmer that does not have a sump but wants a skimmer just as strong. Even for people who have a sump but do not want to clutter it even more. ( Like me)
Works great By Chris on 7/4/2018Chris would recommend this product to a friendIt works well for me. A big upgrade from the cpr I had before. I don’t use the sponge and don’t get bubbles in the tank.
Good skimmer By RK on 11/29/2017RK would recommend this product to a friendVery good performance as HOB skimmer. It pulls a lot of junk but took sometime to setup ago after buying it 3.5 years. Best new is after getting a sump, this skimmer works in a sump! Just take out the intake pipe entirely and have it sit in water in the sump. Works perfectly! :)
Great Skimmer By Charles on 5/4/2017Charles would recommend this product to a friendFast break in period. The skimmer started pulling a lot of dark skimmate almost immediately. No just need to pick up a second one for my other tank.
Best HOB Skimmer By seahorseslave on 1/23/2017seahorseslave would recommend this product to a friendI have had reef tanks and seahorse tanks for over 20 years. I have tried just about every HOB skimmer past and present. I LOVE the bh-90 or now the classic 90. I breed seahorses and they are messy!!! This skimmer works perfect. If you can't have or don't want a sump, there is finally a skimmer that works just as well as an in sump skimmer. I do have in sump skimmers (SWC 160 and SWC 120) This works just as well. You will not be sorry.
Best HOB skimmer I have tried By Chris on 12/6/2016Chris would recommend this product to a friendI generally don't like HOB skimmers and prefer in-sump designs...but this unit is tough to complain about IMO. I'm running this on a 65 gallon reef for about 6 months now and it has been absolutely no trouble (no crazy noises, no leaks/spills, etc.) and collects a lot of skimmate.
It's a bit finicky with the adjustment when new (like many skimmers), but after a few weeks it really settled down and became very consistent. I originally planned to plumb the fitting on the collection cup to a drain or large container to protect against overflows, but the skimmer has proved so consistent and reliable I have not bothered. As with many skimmers...large water changes or certain foods (chunks of fresh seafood for the anemone for example) can make it go a bit nuts temporarily so I just open the adjustment pipe beforehand and then close it down again a few hours later once things have had a chance to settle back down.
Also (as with any HOB I have used) adjustment will be a bit sensitive to your tank water level so best to have an ATO system that keeps your tank water level consistent.
Works well. Wish it came in Red. By Airric on 10/19/2016Airric would recommend this product to a friendFrom a functionality stand point this skims perfectly and doesn't create micro bubbles. It is not silent, but by no means is it "noisy".
Set up is easy. Pulls water from the surface which is a great design. Sponges keep the microbubbles away. You can run a hose from the collection cup into a bucket - all skimmers need this.
Improvements? I wanted it to have red accents like most Reef Octopus skimmers. Wish the black sponges looked a little better.
Is it ozone compatible?
Will this fit on a 32 biocube. I'm looking for a hob skimmer?
Is it possible to hang this off the side of my sump and still get the needed water level for this skimmer? My water level is 7 inches. I'd get an in sump protien skimmer but my sump is just a tad bit small, its 5 3/4 inches wide :(
This will need the water level to be around 2-3 inches below the rim for the siphon to start. As long as the water int eh sump is high enough to keep the intake and output submerged. Feel free to let us know if you have any further questions!
Hi, a little new here to saltwater community. I have 36 gal FOWLR tank. Current skimmer from lps has stopped working. Looking at this one. Does it require a sock or pellets or anything that goes inside other than what's included in manufactoring? Can I just set it in and plug it up? Thanks
The output tubing from the collection cup uses what size tube? I need to purchase one that's longer than what was supplied. I'm thinking like 1/4 inch but I wanted to double check and was wondering if you sell it?
This will use metric tubing however most likely you will want to measure the barb that attaches and find soft tubing in either 1/4" inside diameter or possibly you may need 3/8". Ideally you will want to check first on the unit and see if your local hardware store has soft tubing measured by inside diameter. Feel free to let us know if you have any further questions!
What is the distance that this hangs off the side of the tank? i've got a 20 long, that's roughly 13" tall that sits on my dresser, and i'd like to know if this will sit on top of the dresser, or would I need to move the tank to a side so it'll hang off?
This will hang 12.6" down from the top rim of the tank. Feel free to let us know if you have any further questions!
How much clearance do I need between the back of tank and a wall?
You'll want about 6" of clearance behind your tank to be able to maneuver this skimmer in and out.
Have a great day!
Can this pump be put in a sump? The motor submersed in water
If you have a sump you wouldn't want one of the HOB back versions, just the regular in sump versions. The HOB systems are designed for sump-less systems and require the water level to be near the rim of the tank its sitting on, because sumps have much lower water levels a HOB skimmer would end up out of water in a typical sump.