My Biocube 8 4 months in.

[Souledge9002]

Hey im new to this hobby, i've had this biocube for 4 months now, and over the past 3 weeks i've started adding corals

 

Current tank inhabitants:

 

1 Royal Gramma

1 True percula clown

1 Peppermint Shrimp

3 blue leg hermit crabs

2 Fighting conch snails

3 Nassarius snails

1 stomatella snail

Also have quite a few serpent stars that came on some LR from a friend.

 

I've got one question, i've got this white thing forming on my GSP, I have no idea what it is, it looks like it has two mouths.

[Souledge9002]

and the Corals i've got so far are:

 

Anthelia

 

GSP

 

some mushrooms

 

some button polyps

 

and pipe organ coral