closed loop?

[mmilan]

How do I keep my fish and critters from getting siphoned
into my planned closed loop return?

 

[Reefguide]

From http://www.marinedepot.com

 

[getoutofmyway]

I have used on one of my tanks for my closed loop a heater guard that looks alot like that fitting and is a friction fit as well they are easy to get at any lfs. HTH

 

[getoutofmyway]

I have used on one of my tanks for my closed loop a heater guard that looks alot like that fitting and is a friction fit as well they are easy to get at any lfs. HTH