Lol. Sufficient but your not sure what it is??
Im sure your aware Rays need the most filtration out of anything then times that by 2. Get use to water changes as it sounds like you need to do them 2 to 3 times more often. Rays seem to almost naturally produce nitrates and if they are normally 40 without the ray they will be 80+always noe unless you start doing more water changes. What are you trying to feed him? What was he eating at the pet store? A little of a red belly is probably from transportation so dont worry unless it does not go away. Was the ray kept with fish or alone at the pet store? All this information will help?
Dont worry too much though. They can go weeks without eating if they are already fat. As long as you feed it and provide tons of fresh water you will be alright. But lets get you going.
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