I have a 30 gallon frag tank (the dimensions are 41x23x8) with a 20 gallon sump. It has a Coralife light that has 2 150 watt metal halides and 4 actinic t5 bulbs. I only have about 3 lbs. of live rock and there are 2 Zoas, 2 montipora frags, 1 birds nest, and one candy cane coral and right now I have 2 asteraea snails. There is a 750 gph Hydor Korolia powerhead and there are 2 Loc-line returns. In the sump I have a filter sock and 2 heaters. And in the refugium is a softball size clump of chaeto algae. I am also dosing 2 part. I want to know if anyone has any suggestions that would make my setup better or if there is anything I am doing wrong. Please let me know if there is something I need to fix. Here are some pictures.