My Kuda Seahorses Turning Black! Need help!

Fin

New Member
I bought to beautiful kuda seahorses, and when we got them, one was orange and the other was yellow. Now, they are fully black, but when i turn the light off at night they turn back to their colours. I read it could be the light that I have (I have a T8 light). Any thoughts on what I should do?
 
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