I have a black molly with the same problem (little tiny white spots everywhere). I went to Petsmart to get something called MarOxy and follow the directions per gallon tank and when I asked some at the store about it and gave them the discripition what the spots look like they told me it was Ich. So instead I got Maracide. I hope it works I used it today according to the directions. I hope your Molly is doing better. Mary PA
when using that medicine make sure you check your water everyday. I used some medicine for my fish and it mentioned I might have water changes boy were they right my fish started dying from not enough oxygen i checked ad my ammonia was way up so were the nitites so plse be careful bc it helps one thing and could hurt another good luck
Hi mollys can tolerate aquarium salt so maybe frequent water changes and salt should prevent disease , it also helps bettas, they like brackish water heres a link http://www.molly-fish.com/
I know this is an old thread,but this may help someone else. My Betta had fungus on it's head when I bought him at Walmart. I was able to cure it with a water conditioner containing aloe vera and frequent water changes. I used more than three times as much of the water conditioner with aloe than normal. It was Start Right made by Jungle. Betta is now healthy.