I think most plants that would work with low light would work with sand. I'm not familiar with pool sand, but would assume it's not that different than regular sand? It's a bit harder to get things in sand when you first plant (they want to float away), and if you're actually planting things in the substrate you'll need to have like 1.5 inches or so of sand. If you go too deep you can get anaerobic pockets, but not too deep, with plant roots, should be fine. I also use malaysian trumpet snails to stir up the sand. I got an outbreak of them recently probably from overfeeding but they normally aren't really seen.![]()
But anubias they don't need to be planted in the substrate!
I find Valisineria (jungle vals, they are the tall weedy ones that I cut back every week), Amazon sword, Crypts, Anubias, Java ferns are pretty easy to grow. And you know how I feel about floating plants.![]()
I also supplement with root tabs for substrate plants every 3-4 months.
You should be very happy with pfs! I've been using it my planted tanks for a few years now and find vals and crypts thrive in it. Both are great choices for a low tech setup.
I spent a few hours today clearing crypts in the 180g in order to create a clear space for the teugelsi when he eventually is big enough to move in. It was an absolute mat of roots
This is the 75g with pfs s/he's currently housed in. I supplement with dry ferts, mainly as I'm trying to develop a carpet of baby's tears.

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