IM NEW IN THIS HOBBY I HAVE A 30 GALLON TANK..I HAVE 8 FISHES WHICH INCLUDE A BUTTERFLY FISH HE WAS OK...UNTIL YESTERDAY...HE LOOKS DOWN HES COLORS ARE VERY DARK....AND ALSO MY ROYAL GRAMMA HAS SOME WHITE SPOTS BUT IS NOT LIKE ICK...SINCE I LIVED IN PUERTO RICO MY HOUSE GETS VERY HOT...COULD...