disease questions

yellow tang has little white spot on him , is not a dot its like a little ball or a cottage cheese looking spot , any ideas on what it could be ? tank 4ft with 3 ft sump nitrite 0 ammonia 0 nitrate 5 ph 8.4

I bought an oscar today and was told that if given live foods they will get HITH disease. Is this the case with all cichlids? And does this happen if they don't have anything else in their diet or can this happen even if they have live foods occasionally? The reason I am asking this is I have a...

Hello, I'm new to owning a salt water tank (and new to this community) as I just bought my 15g biocube (or maybe it's a nanocube? they look the same to me) a week ago. At my lfs, they told me they would set up my fish tank for me. A week later I came home with a cow fish, two percs, and an...

Hi This is my first time posting here. Been reading yalls posts for a couple months. Great info. Now I need help! I have a 29 gallon biocube. My tank has been set up for 3 months (bought from previous owner who had for a year and half-she didn't take the greatest care of it). 25 lbs live rock...