Pleco Help

[jcabs100]

So I have a butterfly high fin pleco and he looks blochy around is head are not a lot of bloch but its enough to bother me I added a bog wood to my tank to give him some hide area but when I do see him I still see some bloch anything I can do to get him back to his beautiful color

 

[lilirish]

How big is your tank?
How long has it been set up? Did you cycle your tank?
What other fish do you have?
Do you know your readings for ammonia, nitrite and nitrate?

 

[jcabs100]

My water conditions are fine I have a 20 gallon 8 black neon tetras 1 betta and 12 corys

I've had my tank for about 6 months now all my other fish are fine its just my pleco that bothers me the bloch was worse then what it was now but its still there