will ich treatment hurt my healthy fish?
I am a new owner of two bettas. One is in a jar (soon to be in a matching 12 gallon pentagonal penthouse like the other) and I believe it may have a bit of fin rot. It is dark blue (with a little red at the front fins) but one tiny bit of white on one strip of fin is evident. Could this be fin rot?
I have put a product in called 'multicure' (0.4mg Malacgute green, 4mg Methylene blue and 2mg acriflavine). Will this help? and if my fish does not have fin rot, will this make it sick?
The other betta, in the large tank, is red with a white tail and red 'spots' on the tail... some of the scales in the centre of the body are whitish, but I cannot remember if they have gotten whiter or were like that when I got it (about 4 days ago)... also some of the scales around his face are pale... could this be ich? or something else? Should I treat it for ich just in case, or could ich treatment harm a healthy fish?
But maybe I'm just a paranoid new owner, what do you think?