What is a nurse top-off system? How does it work? anyone have any pictures? I have a Aqua c EV-150 that requires a constant sump level. The Tsumani AT1 system lets the level drop an inch or more before it turns on the pump.
I don't know about yours but my tap water has a lot of phosphates in it, among other things. Do you think it likes phosphates? What an interesting variety of experiences. Eventually an established tank will get some nitrates too.
I have a 75g setup with 120 lb of live rock, a corner overflow, 3 AquaClear 301's for circulation plus the return from a mag 7 in a 20 gal sump with an Aqua C EV-150 skimmer. I have 48" 4x65w PC lighting (2 actinic and 2 daylight). It has been setup since August. Up until Tuesday, I just had...