Ground cover in the shadow of driftwood?

Crypts, Anubias, some moss

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I had Lilaeopsis fill out those areas but it was connected by runners to a mat growing in full light.

Any low-light plant, like the ones Mattb suggested.


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With the right substrate and water crypts will grow anywhere. I recently took out a big piece of driftwood to clean it and found a pretty healthy looking crypt plantlet in a spot where it would've been completely shaded if not covered by the wooded.