Are there any species of crabs that don't get along?

[SoulLonely]

I currently have 2 E's and 9 PP's in a 30 gal. So far they E's and PP's get along. One of the E's is a bit of an aggressor, but haven't had anything bad happen, just a little bit of push fights that someone usually backs off from. I have a cork board round and have seen Donkey, my aggressor E, sleep in it during the day with my PP"s. so cute! :0 Shrek, my other E, is molting right now, but seems more laidback than Donkey

[JediMasterThrash]

My multispecies single tank includes PP's, E's, Ruggies, Straws, Viol's, and Brevy's. I guess that's only 6 actually. There's plenty of deep substrate so I don't often get underground collisions.

[fate4003]

My multispecies single tank includes PP's, E's, Ruggies, Straws, Viol's, and Brevy's. I guess that's only 6 actually. There's plenty of deep substrate so I don't often get underground collisions.

wow! im jealous of your crabby family!!

[Nethers]

Wow, have you had luck with your straws lasting a while? I want some desperately, but I'm worried about keeping them!

Also where did you get your cuttlebone? I got mine but its meant fo rbirds and has a metal piece across the middle so I dont put the whole thing in and instead break it off piece by piece.

[Zoeythelost]

Wow, have you had luck with your straws lasting a while? I want some desperately, but I'm worried about keeping them!

Also where did you get your cuttlebone? I got mine but its meant fo rbirds and has a metal piece across the middle so I dont put the whole thing in and instead break it off piece by piece.

Same. Its a cuttlebone for birds from walmart. Just take the metal off. Normally I only put a chuck in there anyway.

[Sensi]

I've had PPs and Es together and other than right at first they did fine together. I haven't had any luck keeping Es alive, though.

[Invert Mom]

I've been keeping PP's and E's together, so far so good. All but two (smalls) are around the same size (medium).