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Need help to deal with this

Whiterogue

New Member
Joined
29 Dec 2020
Messages
2
Location
Hampshire
How do I treat this? The algae has attached to grass that was originally there.
 

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Kezzab

Member
Joined
18 Jan 2016
Messages
1,402
Location
Carlisle
You have Cyanobacteria, also know as blue green algae.

It can be hard to get rid of in my experience.

Manually remove it regulary, scraping hardscape and siphoning from substrate.

Various theories are around about the cause. Poor flow and low nitrates are ones I've heard. In my case addressing these 2 issues made no difference.

I would get on top of your general maintenance, water changes, filter cleans etc and double check your ferts and co2.

If it keeps hanging around, try this

Amazon product
I've found it very effective and once the BGA was gone it stayed gone.

K
 

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