Originally Posted by Sharp019
I was thinking about getting this substrate for my 55g planted tank that I'm in the process of setting up since I've heard nothing but great things, but I read on a site that the substrate only lasts 12-18 months. Does that mean that after that time period I would need to replace the substrate? I kind of find that counter productive and a hassle for planted tanks.
you woudnt have to replace this stuff after 12-18 months but you might have to add root tabs or something like that just to replenish the nutrients.
I have had ADA soil fo almost 3 years and this azoo stuff is way more durable. I really dont see this stuff breaking down halph as fast as the ADA. I wouldnt worry about having to replace this stuff for a few years even then there are still uses for it like growing plants emersed.