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What kind of algae is this?


MysticReef

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Green Hair Algae.

 

Scrape it off, net it out. Get Mexican turbo snails.

 

The cause is high nutrients, test for nitrates, phosphates in the tank and also the TDS of the source water.

Thank you for the answer. I plan to revamp my tank tomorrow and completely replace the sand bed since I also have a red, slimy algae growing on the sand bed and can't seem to get that to go away. Do you know if I completely change the sand bed if it will cause my tank to start a cycle?

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It may. but perhaps something drastic is needed anyway. Use prime to de-toxify the ammonia and bacterias like Dr Tims or MB7 to help process faster. Lights out for 3 days will greatly weaken both GHA and red slime (cyanobacteria).

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  • 2 weeks later...

Don't claim to be expert in this by any means, but I had some cyano ( not bad, just sreas on sand)that would not go away despite water changes, increased flow, siphoning, etc. Nitrates were running at 10 due to extra feeding for sun coral. I dosed MB7 for a week with no change. I found a box of Algone I had bought several years ago and never used. I added one bag to my filter and in 3 days all cyano was gone and the water was amazingly clear. I took it out after 5 days. Think it was the combo of MB7 and Algone.

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