closed loop
- Thread starter cpalm1998
- Start date
Recife
New member
No. A closed loop is when the water "goes for a ride" outside the tank and comes back in as in chip's funky design 
The more usual overflow box + sump system is a loop as well, but is not considered a closed one, because the water falls into the sump and is pumped back into the tank afterwards.
Chip, this is a great design. Did you use it to replace powerheads? Did you get improvement in your flow that way?
The more usual overflow box + sump system is a loop as well, but is not considered a closed one, because the water falls into the sump and is pumped back into the tank afterwards.
Chip, this is a great design. Did you use it to replace powerheads? Did you get improvement in your flow that way?
chip721
Premium Member
This is NOT my design. Go to the bottem of the page and click on Melev's Reef for some really great stuff. But yes, the general idea is to reduce unsightly power heads without sacrificing flow. I'm building one now, but replacing the SCWD with a Squirt from OM<a href=showthread.php?s=&postid=7121795#post7121795 target=_blank>Originally posted</a> by Recife
No. A closed loop is when the water "goes for a ride" outside the tank and comes back in as in chip's funky design
Chip, this is a great design. Did you use it to replace powerheads? Did you get improvement in your flow that way?
Recife
New member
cpalm, the short answer is no. A closed loop is not essential. What is essential is good flow. Depending on the size of your tank, the sump flow is enough.
You can use powerheads instead in the display tank to improve water circulation. They are cheap enough and are a very easy solution to water flow. I have 3 in my 125gal tank placed in different parts of the tank and pointed in such a way there's no dead spot (or area without water movement) inside the tank.
Does that answer your question?
You can use powerheads instead in the display tank to improve water circulation. They are cheap enough and are a very easy solution to water flow. I have 3 in my 125gal tank placed in different parts of the tank and pointed in such a way there's no dead spot (or area without water movement) inside the tank.
Does that answer your question?
While CLS like Melev's design might be great for larger tanks, for a 29g tank like that it almost seem a bit too intrusive to me. I suppose you could use dark grey or black pipes and it might not stand out so much.
One thing to remember about CLS is that you typically require a pretty powerful pump to run it.
D.
One thing to remember about CLS is that you typically require a pretty powerful pump to run it.
D.
