The Fishy One
New Member
So I started my tank about 4-5 months ago. Had a problem with brown hair algae that I couldn't get to go away. Did water changes pretty much everyday hoping it would help but it didn't (10-20 gallons a day my whole system is about 100 gallons) . So I drained the water washed the rocks off and filling it with RO water. Would my tank have to cycle again? Reason I'm asking is because I'd assume my rocks, sand, and filters would still have bacteria on them. I do have reef mature pro on deck just didn't know if really need to use it to help it cycle again.