Nice tank.. im on 1.5ft too.. i didnt cycle my tank at all.. hahaha.. didnt know need to cycle at that point. But lucky me.. parameters check all ok after 2mth. I have a blue tang, 2 yellow goby, 1 cardinal, 1 clarkii, 1 chromis, 1 blood shrimp and 5snails. Die off list: 1 orange common clown, 1 clarkii (jump out), 1 six line wrasse (jump out), 2 fire fish, 1 cleaning wrasse, 2 copperband, 1 long horn cowfish, 1 cleaning shrimp.. recently my frenz give me 1 cheapo zoa and 3 pcs of GSP. Dun give up.. fishes die off are sad.. but i think u should keep ur bioload down.. try to get the parameter stable 1st before adding in more fishes.. good luck..