i have a 29g with cpr skimmer backpack, 9watt sterilizer, 25pounds of LR, and a powerhead.
4 blue hermits
4 red scarletts
1 sand sifter starfish
1 emerald crab
3 trochus snails
2 green chromis
Problem is that tank has been up and running for about 2 months, and the chromis have some type of...