put in the tank with my crayfish?? I know fish are a no no but i wondered if there was anything else i could put in with him like shrimps, crabs or snails or something?? just want to liven the tank up a little!

Tank is 35L filtered.

If anyone has any ideas please let me know!

I've never tried mixing freshwater invertebrates. Depending on the size of the Crayfish, small shrimp may be eaten and it may go to war with any Crabs.

You could try it, but I don't know what'll happen.

hmmm. i dont know, i wouldnt want any harm to come to my Eric! My brother in law kept lobsters and crabs with no problems but his tank was a bit bigger then mine! If i did get shrimps and Eric ate them would it cause him any harm? Also do i need to have a planted tank to keep shrimps? I dont have any plants in there at the moment as Eric just trashes everything