bangai

Background: 75 gal mixed reef tank - adopted 5/09, 30 gal refugium sump with miracle mud & some chaeto 1.023 spg, 76F temp, pH to come, RO water w/Coralife salt Unspecified pump with 2 alternating returns over the top, 3 Koralia for flow 2x150 MH bulbs, suspended 12" above water surface (new...