What can I say? I was ignorant, I do not even know that those loaches has very sharp bifid spine, never paid attention to it. I have this loach for at least 4 years with discuss when my tank was for planted tank with discuss. I get bored of discuss (not much movement) and tired of clean up and trim plants, and after I find out there is such thing as freshwater stingray. That is it. I am hooked. I bought the ray and with time the ray cleared out the plant as it grows up. So the loach is just part of the its tankmate until yesterday.
Anyway, the ray is still resting . I try both MP and earthworm, but Ii does not have much interest in food for now. Only time can tell whether it can make it or now. I just leave it alone without adding any salt. I do not believe much in salt or antibiotics anyway. If it is time for it to go, then that is it.