I noticed my betta has fin rott his back fin looks like it was eening out noew its like partly instrips.
the Petco guy told me to use Melafix I have him in a 1.5 gallon tank I added a couple of drops then I read that it was bad for them and did a 100% water change.
Hes tail began getting worse so today I added melafix again.
I also added some no idonized sea salt is this the right thing todo.
ALso I have been doing a 1% water change everyday.
How do I dose melafix,and do i do water changes while I'm dosing him?