I have never fed (directly) any of my nems!
The two in my 120(from NJ{a story itself}) are 7+ years old and one split into two last fall.
This was one year after I took possession.
Both (of the ONE) are doing great and about supper plate(10") size easy.
The second nem is ready to split anyday now for last 6 months
IMO and is around 20" during lighting and GONE back into his crack when the lights fade.
They feed mainly on light, and the clowns bring them the bonus.
I only feed the fish 1-3 times week.
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