tang help

Hello, yes I know tangs have to be in tanks over 100 gallons. I am wondering if this is from the very beginning or just when they are bigger. I only have a 40 gallon tank and I was wondering if I could buy a baby blue hippo tang (no bigger then 1.5 inches) and keep him in here for less then a...

I just noticed this worm like strings hanging off my Yellow Tang. At first I thought is just fish poo that had not fined evacuating but the more I watched him I am not sure. He is swing around fine eating, no sign of ich. I tried to take a picture but he keeps hiding behind the rocks every...

Have had a powder blue tang for close to 2 months...Very healthy, growing,....added a yellow tang 3 weeks ago. all of the sudden tonight, the Powder blue breaks out in white spots all over.. Strange thing is this has happened within the last 3 hours...was home at 6pm, put seaweed sheet in to...