I have 3 True Perculas in my 210. I was thinking of adding a pair of Clarks. Would this work? Another option would be to take my Black and White False Percs out of my 20 gallon put them in the 210 and put the Clarks in the 20. I have a feeling that all of the above is a bad idea, and 5 Clownfish in one tank (even a large one) is trouble waiting to happen. I just wanted to get other people's opinion before I listened to the voice in my head, and did something stupid.