I don't think a cten would last long with SH though lol.
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I have a group of 5 pleurophtalma SH with 3 ctneopoma. It´s working very weel and the cten are teaching the SH to eat NLS.
Of course the biggeste SH of the group is only roung 6-7" so it may not work in the future. But I think it may