Should I be worried?

[doadster]

Got a flat brain on Saturday. Opened up beautifully for a coulple of days. But now has been closed up past two days. My yellow tang seems to be nipping at it occasionally. But dosnt seem to be damaging it. Do I need to worry?

[Carlos]

tank specs?

Water quality?

Lighting?

Cannot help you if you don't provide us with basic information.

Carlos

[doadster]

sorry........

nitrates 0
ph 8.0-8.2
calcium 460
alcalinity 2.63

[corbett_n]

lighting? It could need to be moved somewhere else in your tank, depending on your light source

[loosecannon]

Your water looks good. Corals don`t like being pick on. It keeps them closed up and they can`t feed.

[Carlos]

Yellow tang is not picking on the coral. It is probably and most likely just munching on the algae that is growing around the coral.

Carlos