Clown is mad

PatricioLG

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Please can someone tell me why this clown is mad at bedtime, seems to be attacking the top of the water, is fine during the day?
 
Is it newly added to your tank? New clowns can be very weird for the first few days until they find a spot they like. IME
 
I have a pair of Ocellarius Black Clowns and they have become quite territorial and aggressive as well. Every time my hand goes in the tank for som maintenance, they both take turns rushing and biting my hand. Pretty brave for such small creatures. Not sure why they do this, hopefully it isn't something I did.
 
Is it newly added to your tank? New clowns can be very weird for the first few days until they find a spot they like. IME
Been in the tank for over a week, I’m hoping they settle lower down after a while but this one is potty. I even turn off my wavemakers over night and lower my crossflow to night mode.
 
 
 
Is it just the one clown or is it paired? If one’s being harassed they can be pinned up in a corner like that.

Or it’s just a clown being a clown…
 

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