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back ground gunk?!

uprr

reefaholic
i'm debateing weather or not to clean off the back of my nano tank. the back is black so i'm thinking of leaveing the growth on the back. i just want to be sure this is not going to cause me any other trouble down the road :confused:
 
cool, thank you. i kinda want the look that says this isn't the back of a tank but i really dodn't want to cause problems latter on. again thank you!
 
any algae that grows is food, and also is doing nutrient export......
 
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