Depending on when you test your water it may show no ammonia. Figure this could be happening every 48 hours. Hypothetically speaking.
Feed the ray, 10 hours later ammonia spike, 2 hours later nitrite spike, then after a couple more hours the params are normal. The only way you are going to see if this is happening would be multiple daily testing of your tanks water for ammonia and nitrate.
Like I said, ray owners may be able to shed a little more light on the subject. IDK if this really happens, though I did experience something similar when I had RBPs.
Feed the ray, 10 hours later ammonia spike, 2 hours later nitrite spike, then after a couple more hours the params are normal. The only way you are going to see if this is happening would be multiple daily testing of your tanks water for ammonia and nitrate.
Like I said, ray owners may be able to shed a little more light on the subject. IDK if this really happens, though I did experience something similar when I had RBPs.