moss clump danger for fish?

[Mossana-Mossini]

Have several occasions of my whiptail and cories stucked and died inside moss clump. Anyone has any other experience? Will other fish stuck as well?

[benny]

I have also had casualties from fishes stuck in thick moss clumps. My badis badis (amongst others) was lost in there and could not free itself from the entanglement.

Usually, if the moss is secured to the wood properly, it does not pose much of a problem. The danger usually arises from big clumps of tightly clustered moss.

Cheers,