Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I you must have peat moss in pellet form, OK, but I get the garden store variety (no ferts or surfactants) a lot cheaper.
In the filter, I use nylon stockings for loose media.
I have used the fine peat moss that is sold for gardening in the tank as substrate. I did not like it, too fine, too light weight. When it got disturbed it settled out on top of the leaves and driftwood.
Probably would work just fine as a dusting under the substrate.
In the filter I ought to change it out more frequently, maybe once a month, but I have gotten lazy, and just leave it in there. I do not currently have any of the super-picky fish that require it.