Originally Posted by coffeetwitch
so dwell time in the sump makes the skimmer work better? what size return pump should be recommended for a 4o breeder? i may go back and compare notes with the other 40 breeder builds.
dont forget about the lights if you dont mind too.
Yes, exactly. "Dwell time" in the sump makes the skimmer work better. What's the headloss on your sump to DT? I'd recommend a pump with 2-3x your volume as a return pump. Some folks like 5-7x, it's really up to you. Perhaps a pump with 120-150gph after headloss would be ideal. You can go bigger if you want and put a valve on it to throttle it back. A Mag 3 or 5 will probably do the trick.
As for light, watts per gallon in somewhat of an outdated model to use. Even so, SPS
and clams require quite a bit more light....something around 8-10ish watts per gallon if I remember correctly. A 4 bulb T5 isn't a bad place to start. If possible I'd augment what you have with another 2-4 bulb t5 system, or perhaps an LED
strip and get some shimmer effects?