The hatchling that died yesterday, i am unsure how long he had been in trouble for, but i watched him for a while and his little heart seemed to be beating well, it was beating in a triangular sort of motion, 3 beats a time, which was awesome to see as i have read about it. That also made me think he was in with a chance of survival, but he passed about 4 hours later. Feeling a bit better with my new routine, i actually gave them a water change after the morning feed, and will change it again tonight, in about 20 minutes. Will water changes every 12 hours be harmful in any way?