Be very careful if you have gobies, mandarins, blennies or clowns.
Tube anenomes have a deadly sting and are non-symbiotic with clowns.
Any fish that might land on them is at risk.
I lost one of my clowns to a tube anemone. The clown tried to host it (I assume) and got stung. The anemone got pulled out of it's tube in the struggle and it has disappeared into the back of my tank. The clown died very quickly.
I thought they were beautiful too.
