My TSN is about 4-5 inches long and always ate good,but since i got a RTC and put him in the same tank the TSN hardly eats(maybe 1 piece of shrimp every other day or so)the RTC was smaller but as since had a big growth squirt(got him at 3-4 inches 3 weeks ago and is now pushing 6 inches).The TSN is kinda pushed around at feeding time,but nothing really serious,could this be why he is not eating so well???I would consider getting rid of the RTC if need be.Thanks!!!