Something growing out of GSP

[guy fawkes]

Any clue?


Thanks

 

[Robink]

Could be branching out. Mine does that, it's on my back wall and sends out branches trying to get to the rocks.

 

[Robink]

this is a cell pic. I cut the branches before it can get to the rocks.

 

[CoralCollectors805]

looks like a type of tunicate sponge

 

[Robink]

Here's a better pic of it branching...