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You have coral in this tank?
Now you've got hair algae too, thats not a good thing. I doubt that once rock would spread the algae throughout the time in no time.
BTW those red/purple areas of the rock is probably the cyano(It's not a good thing and everyones working under assumption due to lack of pics).
Do you at least know your water parameters?
-Kris
__________________ Kris
Starting Fresh. Tired of the Boring Old Way To Do Things. Stay Tuned. |