He sounds like a normal clown to me. I just got a 2nd one today to go with my female and now they both just hang out above my Duncan. They don't really go anywhere else lol. Clownfish are just odd. And no you don't have to much current
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20 Gallon SPS reef
29 Gallon FW "fat catfish" tank
20 Gallon Long Dart Frogs "Zig" and "Zag"