green algae <snip> are common when your tank is going through these steps
I don't think that green algae is as common a byproduct of cycling as the diatoms are. If you have green stringy algae (hair algae) then there's something in the water that doesn't belong there. The diatoms (brown algae) are from silicates which are very very very common in new tanks. The hair algae is more likely the result of phosphates in your water. You need to identify the source of the phosphates (are you using tap or RO
? what kind of food are you feeding? what additives are you using? what kind of carbon do you use?). Once you pin down and eliminate the cause of the hair algae it will go away. In the mean time keep it under control by manually removing it from your system. Ask you LFS
to test your water (or purchase a test kit) to see if they can detect phosphates in your water both tank and source water.
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