I'm new to planted tanks, but decided to use it. I've had it planted for three weeks and so far so good. I put a very fine layer of peat under it - just a dusting over the bottom of the tank. I didn't rinse it when I put it in, but I did fill the tank VERRRRRY slowly - about 1/3 of the tank per day over the course of three days so that may have helped. I put a plate on top of it and had a very slow flow going onto the plate. I have Cryptocorynes and a couple of Echinodorus in it so nothing very hard to plant. I have an Ancistrus sp. and some Corydoras julii in the tank right now, have not fertilized until today when I put a couple of Flourish tabs at the base of the swordplants. Someday when I have a decent camera I'll take some pictures. HTH.