algae or coralline algae?

[wessendorf15]

 

[frisbee]

It 's definitely an algae of some sort. Whether it turns purple or pink, I don't know. The odds of this happening is probably in your favor though. GL.

 

[nivek]

Its algae. Coraline algae is on the rock behind your snail - the purple stuff

 

[kyle4201]

I have the same rock type thing in my DT. SAME thing on it. That algw is on nothing but that rock thing. Weird.

 

[Gastel]

I am currently into the third week of cycling my RSM 130D and have one or two pieces of LR with the same green on it. From what I have gleaned on this and other forums it is just coraline algae of a different colour. It may or may not turn purple but is not something to worry about I believe.
Cheers

Sent from my Transformer TF101 using Tapatalk HD