tnwillia
Well-Known Member
I purchased this as a back-up skimmer for my RSM 250 where my Primary is the EuroReef Nano RSM 250 skimmer.
Octopus Hang-on-the-Back
with OTP2000
• Item #: OCT-BH-2000
• Dimensions: 7.75" x 3.25" x 17"
• Includes OTP 2000 pump
• Rated up to 125 gallons. (varies due to bio load of system)
Out of the box, I had the unit assembled in 10 minutes. It is about 95% built out of the box. You still have to install the pump and its plumbing.
Coralvue has also come out with a new impeller for the Octopus line of pumps. My 2000 pump came with the old style needle wheel. I purchased the new pin wheel impeller and installed it in the pump, keeping the needle wheel as a back-up.
For those with ER Nano RSM skimmers here is a side by side to get an idea of the BH-2000 size.
Be sure to water test your unit before putting it in your tank. It took me 3 tries to get the 3 lock down screws in the external pump sealed and not leaking. I had read in other threads of people having this problem and using thread tape, I did this, in my case this made the leaks happen. In the end, I used the supplied O-rings with plumber’s silicone grease and hand tightened. I got a good seal and no leaks. I also added the ty-rap on the air line as I read on one person who had this work off and flood his floor.
Now I was ready to put it in my tank. I found out right away both input and output pipes were too short to reach the water in my back chamber. This was my main modifications to fit the RSM 250. I had to extend both pipes. This was not straight forward as the skimmer uses UPVC and my local building supply only carries PVC. The I/D is different. Here is what I ended up with as a working solution. Note, the overflow cup is not shown installed in the picture on the input pipe.
Once in my tank I filled it with 8” of SW as directed. I plugged it in but got no bubbles. You have to have the air line clear and closed when you start the pump. Once the pump is running you can open the air and the bubbles will start. It took me a few tries to get this but once it started I got good bubble production from then on. This pump is very quiet, and being external there is no heat being generated into my tank.
I’ll continue this thru skimmer break-in over the next couple of weeks. Again this is my going to be my back-up skimmer. I really don’t want this big HOB riding above my tank full time. I’m sure this may be perfect for others and I hope the info may help.
Enjoy....Tom
Octopus Hang-on-the-Back
with OTP2000
• Item #: OCT-BH-2000
• Dimensions: 7.75" x 3.25" x 17"
• Includes OTP 2000 pump
• Rated up to 125 gallons. (varies due to bio load of system)
Out of the box, I had the unit assembled in 10 minutes. It is about 95% built out of the box. You still have to install the pump and its plumbing.
Coralvue has also come out with a new impeller for the Octopus line of pumps. My 2000 pump came with the old style needle wheel. I purchased the new pin wheel impeller and installed it in the pump, keeping the needle wheel as a back-up.
For those with ER Nano RSM skimmers here is a side by side to get an idea of the BH-2000 size.
Be sure to water test your unit before putting it in your tank. It took me 3 tries to get the 3 lock down screws in the external pump sealed and not leaking. I had read in other threads of people having this problem and using thread tape, I did this, in my case this made the leaks happen. In the end, I used the supplied O-rings with plumber’s silicone grease and hand tightened. I got a good seal and no leaks. I also added the ty-rap on the air line as I read on one person who had this work off and flood his floor.
Now I was ready to put it in my tank. I found out right away both input and output pipes were too short to reach the water in my back chamber. This was my main modifications to fit the RSM 250. I had to extend both pipes. This was not straight forward as the skimmer uses UPVC and my local building supply only carries PVC. The I/D is different. Here is what I ended up with as a working solution. Note, the overflow cup is not shown installed in the picture on the input pipe.
Once in my tank I filled it with 8” of SW as directed. I plugged it in but got no bubbles. You have to have the air line clear and closed when you start the pump. Once the pump is running you can open the air and the bubbles will start. It took me a few tries to get this but once it started I got good bubble production from then on. This pump is very quiet, and being external there is no heat being generated into my tank.
I’ll continue this thru skimmer break-in over the next couple of weeks. Again this is my going to be my back-up skimmer. I really don’t want this big HOB riding above my tank full time. I’m sure this may be perfect for others and I hope the info may help.
Enjoy....Tom
