Hi, I just recently moved my little motoro into my 120. Its tankmates are two smaller Senegal bichirs and a large weeksii. The weeksii is quite large and every feeding keeps grabbing my ray by the disc, hes got a little piece missing now it keeps getting worse. I was told I would be able to keep them in the same tank but I'm not sure if this is possible. Anyone know if my weeksii just has to get used to the ray, they have only been together for 3 days, or if its just going to get worse and one of them should be removed?