Hello, Its been 4 moths now

[Snappy]

I don't see the 4 moths you mentioned in your title
Your tank is coming along nicely. Keep up the good work.

The other surprise was 2 brittle stars or maybe feather stars in the rock that my mushrooms came on I saw them often @ first but I don't see them anywhere now could they have been eaten? they were tiny.

Check with a flashlight a few hours after lights outs, they are mainly nocternal.

[Quagmire]

The brown thing in your pic,I believe is a sponge of some sort.

[Massiso]

The brown buble with 2 holes I think the hermit crabs keep kicking it around its no longer where I placed it is behind the mushroom rock if it is a sponge how many watts/g do I need to keep it happy?

My last test results were:

PH 8.0
KH 7dh
Amonia 0
NO2 0.3
SQ 1.024
Temp 80F

Are those okay for the Brittle Stars??