Are these critters compatible?

I am buying a 29-55 gallon fish tank and I am planning on the following critters. Will they exist harmoniously? 2 mated Ocellaris Clownfish 3 Lemon Chromis 1 Emerald Crab 1 Scarlet Skunk Cleaner Shrimp 3 Red Scarlet Reef Hermit Crabs 1 Blue Tuxedo Urchin 1 Sand Sifting Starfish I am still deciding on a sand sifting Goby and another 3-4 inch centerpiece fish. Any help is appreciated!

 

They should do fine. You need to know that the starfish will most likely waste away as out tanks do not have enough food to feed the star long term. Adding a sand sifting blenny will only make matters worse.

 

Id forget the ss starfish. I had one awhile back and it just disappeared. I recently replaced my 90 and i thought id come across a skeleton or something but it seems to have just disintigrated. Another con is they eat all those wonderful creatures living in your bed. If your going to keep corals id forget the ss goby too. They will drop all kinds.of sand/substrate all over the corals. As much as i love the little guys im trying stay away from anything that might affect my corals. Which is no easy task since there are so many creatures id like to.get. There are alternatives. The Lawnmower Blenny is mot much to.look at but man what a personality. I always tell people they wont be disapointed.with a Lawnmower.

 

Don't get a true sandsifting goby. Many die from starvation and get quite large.

 

Thank you for the information, ill redo my list.