I have a 125 gal, tank with 1 clown trigger 3-4in, 1 niger trigger 2-3 in, snowflake eel 10-12 in, and 2 damsels. There is no fighting amonst them and they eat extremly well. I feed them all 1 time a day. I have 50-60lb of live rock and other rock. Wet/dry filter, skimmer, 3 power jets, and 2...