Julien86 Posted January 23, 2021 Share Posted January 23, 2021 Hi everyone! I have a 5 gallon tank for about half a year and I'm battling algae for some weeks now. I reduced the lighting from 12 hours 10 and it's an ongoing battle. Is this green spot algae or black beard? I had black beard in another tank but it wasn't as flat as this. Also, is the stuff on the glass the same type? Lastly, is there any hope of fighting this without a filter? This was a little project of mine that started with no filter, no lighting, no ferts, no heater and no air stone. In the meantime I got a heater and some lighting for it. Link to comment Share on other sites More sharing options...
Maggie Posted January 24, 2021 Share Posted January 24, 2021 Hi Julien, @Irenefrom Aquarium Co-Op has a great video on YouTube about algae and different ways to control it. Snails help, too. 1 1 Link to comment Share on other sites More sharing options...
OceanTruth Posted January 24, 2021 Share Posted January 24, 2021 Looks like the start of hair algae to me. At least that's what mine looked liked in the beginning. 1 Link to comment Share on other sites More sharing options...
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