Clownfish Acting Erratic

Best way to counteract the nitrites is water changes. Your biological filter should catch up fairly quick.
 
Thats alot better, although you could do with dropping the nitrates a bit, they aren't going to kill the fish at those levels though. Continue monitoring the nitrite levels just to make sure they don't jump again. If they do spike, do a water change. Hopefully now the nitrites are gone, the clown will start acting a bit more normaly (whatever normal is for a clown). Keep monitoring. If he's eating and active, all should be fine.
 
It's good he's eating but try and get him on something more nutritious than brine shrimp. Fish love them but they have vitually no nutritional value, something akin to burgers lol! Try feeding him some Mysis shrimp, they're much better. Glad he's looking better.
 
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