What is this ?? Its growing fast!

[Makubex]

a while ago i had something like this but it was thicker and taller and someone here said it was some type of sponge then it turned black and died, this however im not too sure, anyone? Thanks

 

[Makubex]

Helloo

 

[fish farmer]

Does it have small feelers or something similar coming out the ends?

 

[Makubex]

Nop

 

[Makubex]

Bump

 

[Shon]

Longhorn sponge?

Farmed Sponges and Sea Squirts Reeffarmers

www.reeffarmers.com

 

[TriggerFinger]

Looks like sponges to me.