Looking to ID Algae in Sump

[DKoKoMan]

Those setups are so sweet with the internal light tube but so pricey. I have a ball of chaeto in my sump right now but haven’t saw any growth out of it really. How long does chaeto normal take to see noticeable growth with nitrate and phosphates present?

I’m jealous that you need to dose nitrates. I’m hoping with the upgrade in tank that my bioload is reduced a bit that it lowers in the water volume. Otherwise I will have to stick to the chaeto and vinegar dosing.