Invert compatibility

[Uptowngirl]

Hi all.
I have a 29 gallon biocube. It’s current stocking is:
1 ocellaris clownfish
1 mandarin
1 six line wrasse
1 coral banded shrimp
1 giant brittle star
Some snails
1 hermit
1 baby bubble tip anemone
Lots of soft coral
Tons of rock hiding spots

I would like to add these:
Cleaner shrimp cause I think they’re cool
Peppermint shrimp to handle aptasia
Harlequin shrimp to handle Asterina
Several sexy shrimp cause I think they’re cool
Pom Pom crab from my 5 gallon even though it means I might not see him for months at a time

I don’t really like the coral banded shrimp, he came with the tank but he is huge and occasionally tries to pinch me when I’m working in the tank. Thinking about taking him to LFS.
I also don’t really like the brittle sea star. He is huge, I mean giant, and he kinda scares me if I accidentally touch him when working in the tank (stupid I know just don’t like him). Thinking about taking him in too.

Without those two, does everything else seem like it would get along? Does it seem like too much for such a small tank?

Photo of giant star from a day when the tank was moved and it was resettling in

 

[Flippers4pups]

Sixline may become a problem for them.