Wolfgang8810

i have a 10 gallon tank highly planted with lots of hiding places would a small blue crayfish do ok with 5 barbs(medium) a golden gourami(large) and a red tail shark(large)

Chief_waterchanger

Crayfish will shred any plants near their living vacinity.
The red tail shark gets 4-6 inches, gourami gets to 5 inches, and depending on what barbs you have, they range from 1inch to 10 inches. The red tail shark alone shouldn't be in a ten gallon tank, it needs more gallonage.

So to be totally honest:

The tank is overstocked, adding more biomass of any kind would be bad, as well as losing all your plants to a crayfish.

TheEssigs

crayfish also are awsome escape artists! if you tank does not have a tight fitting hood, good luck in finding him!

Wolfgang8810

my barbs are all still 1 inch and both the sark and gourami ar 2.5 inches i have a tight fitting hood