i have a few emrald crabs that i got in a reef package, how many can i have? i have a 120 g tank. i have great water quality including use of r/o DI water.
SG. 1.025
ammonia: 0
Nitrate: 0
Nitrite: 0
Calcium: 450
KH: 9
PH: 8.8
100 lbs live rock
2- 250w 14,000k MH
4-t8 HO blues
running a skimmer...