Anyone can help, this morning i saw my powder blue tang not eating and saw a 2 small dark patches at the stomach area. Fish dont look good... not too sure if is parasites attack??? 4 days back, my Naso Tang just die without any sign... next day my hermit crab was feeding on it.. I manage to catch the power ble and put it in a pail with air bubble.. not too sure if can last till tonight.... Any advise pls....
Will change water this weekend...
alan
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