"moss" from a pond for lay box?

[mues155]

Well it's realy like a weed. Not really moss. But if you break it down I bet it would make a nice laybox substrate.

There's no doubt it would probably make a fine substrate if cleaned. It's just not worth risking it.
That's the beauty of keeping things in captivity, there are products made specially for pets.
Moss is cheap, there's really no reason to need to use a wild pond growing weed to do the job that's all.

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