dont know what to do

[trickle25]

ok here goes ive at a PB tang and about 3 days ago i started to see this white spot on its eye today i noticed its gotten bigger it look like cotton. i went to the lfs store and they gave me this stuff called greenex which is safe for invertebrates so i put that in. and then they told me to put it in quarantine my porb is that my tanks is at work in the office and i cant set up another tank for it. i was wondering if theres anything else i can use in the main tank that would help the tang but would not harm the other fish, corals, or interts.

 

[beth]

What kind of tank is it? Fish only?
You shouldn't put meds in the tank, let alone greenx.
Not much you can do without a quarantine tank except maintain good water quality. Feed well. You can soak your fish in garlic. What are you feeding this fish? Who feeds the fish during the weekend? Tangs need to fed often!