3 questions 1 thread-lazy or efficient, you be the judge

[New&no clue]

I have a couple head scratchers with my tank I was hoping to get some second opinions on.

30 Gallon AIO
2 Clowns
1 YWG
1 Green Clown Goby
1 Tiger Shrimp
1 Fire Shrimp
1 Peppermint Shrimp
1 Tuxedo Urchin
handful of snails and hermits

Mag 1350
Cal 430
ALk 8.1
Nitrate 10
Phosphate .12

1. My Sunny D zoas have developed very long curly tentacles is that normal? I have some in other tank and they are short and stubby. I didn't know if this was possible a sign of something else

2. I have a Frag of a mix of dragon eye and something else. It was growing great and had grown over the plug and onto the rock work, however, in the past couple weeks the polyps have been disappearing. Everything else in the tank seems fine. Is someone eating them or is it just melting away? Below is the current and 1 month ago.

3. I have a yellow toadstool with what I think are worms growing out of the base. Can I get a confirmation please?

Thanks in advance

 

[HeyJay]

Some zoas have or develop long skirts, totally normal.

Zoas can melt away if alk is low but that doesn't seem to be your problem. Sundial snails are a zoa-eating pest, something to look for after the lights go off

 

[New&no clue]

Some zoas have or develop long skirts, totally normal.

Zoas can melt away if alk is low but that doesn't seem to be your problem. Sundial snails are a zoa-eating pest, something to look for after the lights go off

I haven’t noticed much. I do have bristle worms, but I don’t think they bother the zoas. I have 13 different Zoa frags and all seem to be growing fine, so I’m not sure what happened to this one