stingray disease dead

I recently for a male motoro stingray, and started noticing a white edge begin to develop. It has been a few day, and I have done water changes. I've checked the water and my ammonia is 0ppm, nitrates and nitries tested as low as possible( I used an api master test kit). I don't know how to...

Hey guys I’m wondering about a possible problem I may be having with my teacup stingray. She doesn’t like to bury herself under the sand. There isn’t any noticeable spots of fungus that I can see. But on her tail/bone there is a ‘fuzz’ like appearance. The ‘fuzz’ is very fine and only seen...

Hi, I need help on trying to find out a reason as to why i lost 5 small healthy rays. Ill start with the tank they was in. It was 6.5x3x4 with 2 fx5s and a small eheim filter. The tank was on a hma drip system so fresh water was being adding and old being taking out. The first ray i lost was a...