HI everyone, I can't win with our beloved bettas. My red and blue betta, Felix he's regrowing his fins after losing them all in a filter accident. Anyway his tank went from cycled to almost 2 ppm ammonia. I can't figure out why, I don't over feed, he's not messy and he's by himself, and when I do water changes there's nothing dirty in the substrate. His filter does 100 gallons per hour on an almost 7 gallon tank. I've added stability and ApI quick start nothing. So now I'm doing 50% water changes every other day and adding prime and apI ammolock. Through all of this Felix has been totally unaffected, no redness, heavy breathing, nothing. Over the last week however, he's developed a little bump, which I couldn't figure out what it was and today I wake up and it's turned white. Any thoughts on what it could be and how to get rid of it? Again this thing hasn't affected him any either. Now onto my brother's betta Cooper, he's in a ten gallon with a pair of cories ( adding more soon, had the old tank spring a huge leak and now this going on with Cooper) , I've noticed Cooper resting a lot, especially for super active Cooper. Today he looks super bloated and or has dropsy? My brother did admit he's been over feeding a bit so the cories get flakes too. His tank is cycled 0,0 and between 10 &15 nitrates. Could really use some help for both of these guys.