The only source of flow in my 20g long is the AC500 fuge and a small amount coming from the PhosBan outlet. Is this enough water movement or should I place a power head in the tank? If so where would you recommend placing it. The tank contains LPS and shrooms/ricordia.
See pics in this thread: http://www.aquariacentral.com/forums/showthread.php?t=110421
See pics in this thread: http://www.aquariacentral.com/forums/showthread.php?t=110421