IHOctopus Posted July 1, 2022 Share Posted July 1, 2022 A few weeks ago I started noticing black beard algae beginning to grow on some of my plants. I have no idea where it came from since I hadn't introduced anything new in a while. It's not that bad yet (see first two pics) but I want to keep it from spreading. I have a low tech planted tank that's about 4 months old. I run a Fluval 3.0 light with a very modest lighting schedule. (Pic attached) My nitrates are consistently around 5 and pH 6.6. The algae is popping up mainly on the plants on the left side, mostly amazon swords and crypts. I added a pic of my whole tank just for reference. Here is what I have done: 1. I used to have an in-tank filter top left corner. Even on the lowest setting, the flow was fairly high and the output was located about half way down the tank. I was worried that the flow was what caused the BBA, so I swapped it for a sponge filter. 2. I started dosing easy green. Maybe my plants are lacking some nutrient which prevented them from growing, meaning the BBA had an opportunity to grow. 3. I treated a few times with excel, both in the water column and on the leaves. But I haven't seen and positive changes. Any other suggestions to try for now? I generally don't do large/frequent water changes since my parameters have been really good, but I can try that as well. Link to comment Share on other sites More sharing options...
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