My tank has been cycled and I have added my first few fish over the weeks. A pair of clowns and a royal gramma. My entire tank has kinda turned a brown color, the substrate and rocks and glass. I added some Hermit crabs and snails to help, but the brown algae that grows on the glass is relentless. I can scrap it off and it comes back in 4 hours or so, like I never did anything. Is this normal? should it slow down after a while?
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