:help: cant i just treat the tank the hippo is in with some kind of ich treatment from the pet store or will i kill the rest of my fish? i just got this hippo a few days ago and noticed a few white spots on him today. how did he get this in just a short period of time? the rest of the fish seem to be doing ok. ammonia 0, nitrite 0, pH 8.2, nitrates around 30. salinity levels is 1.021. or is quarantine my only option? if so, can i use same water from my tank in a 5-10 gallon QT tank? will i also have to put in some live rock as well. any help is GREATLY APPRECIATED. thanx.