I have a 30 gallon tank and bought 2 Molly’s bout 2 months ago. Did a 50% watcher change with correct treatments, but few days later momma die but all 10 guppies good but papa fish is all black and he’s definitely got ick, white spots on belly and fins and glassed eyes. Early this morning I went and got fungus clear fizz tabs, and had to order stress coat! Didn’t want to get the ick med cause it said not use if small fish!! What should I do next???