Hi bro
I bought it on last friday. Yesterday it had powder(look like a powder) on its fin. Everything seem to be normal and still ate food. But today it has powder spread on its body and fin and look unwell and it not eat food and just to swim in cave.
I veryๆ serious
iT live with reef
I think that i will change water about 10%
Wat should i do next? please give me some advice please
Some body help me plzzzz
thank alot bro