Looking for Closed loop advise

[gsedlack]

I am planning on doing a little upgrade from a non-drilled glass 125gal to a used 215 Acrylic tank. The lack of a sand bed and limited aquascaping options led me in this direction. I also hope to move further into SPS with little or no fish addition. I want to use a closed loop for circulation by drilling holes into the aquarium back.

 

I have thought about using 4x1" outputs and 1 2" input and a Reeflo Dart. I might add a OceansMotion at some point but I would likely start with equal flow to all.

Additional flow would be from the return connected to a 1" sea swirl.

 

Does anyone have an opinion to layout or plumbing advise, or perhaps a pic of their closed loop?

 

TIA /George

[jason the filter freak]

My advice is be very very careful with reducers and expansions too much of either and you'll get cavitation out the wazoo!

[jason the filter freak]

Take a gander though this thread, there were a lot of good ideas here and a couple... not so much. We ended up going another route but it was a lot of fun and almost worked just too much cavitation

 

http://www.wamas.org/forums/index.php?show...c=15962&hl=

[ctenophore]

I have thought about using 4x1" outputs and 1 2" input and a Reeflo Dart. I might add a OceansMotion at some point but I would likely start with equal flow to all.

Additional flow would be from the return connected to a 1" sea swirl.

That will not be nearly enough flow for a sps tank, especially with equal, static flow. Two of those CL setups w/ oceansmotions will work. That is what DaveS is doing with a similar sized tank.

[steveoutlaw]

I'd also suggest using two 1" intakes and merging them into one. Easier to hide and can help bring some flow behind the rocks. also, not as strong of a suction through each of them so less of a chance of something getting stuck.