What is on my fry tank?

[Esunman22]

What is this green stuff that’s appeared on my fry tank? it’s never happened before but has suddenly appeared over night? Does it need removing and is it bad for my fry?

 

[Colin_T]

The green stuff on the rocks looks like plain old boring green algae. Algae is harmless and grows anywhere there is light and water. If you have live plants in the tank, it helps prevent algae from growing. But if you don't have any live plants, then algae will grow instead.

 

[emeraldking]

Simple algae... that's all...

 

[FishGuest5123]

Yup, algae.

 

[Barry Tetra]

It’s an algae, you can feed them to pleco and otos.

 

[JuiceBox52]

If you dont want it you can try having g you light on for 2 hours less than usual