I admit that I've got a tendency to remain very very low-tech when it comes to planted tanks, but I did dabble in 'special' substrates. Flourite (bagged and labelled....not used), laterite, EcoComplete....and prefer to stick with my old stand-by that produces happy plants for years without constant pumping in of chemicals and CO2 (wink).....layer of potting soil or peat with a overlayer of plain old aquarium gravel over that. My Sags will take over the whole tank as will babytears or rotala if allowed. I like to stick with tanks that are no taller than the standard 10 gallon tank and then I seem to be able to supply adequate lighting with a couple simple strip lights rather than investing in high-tech lighting (expensive). I ended up having to buy a compact flourescent light strip for my 29 gallon which does not make me a happy camper. Too high tech (big smile). Once you figure out which low-light plants will grow for you....and you stick with those, all is well. Betty Goetz _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member