I have just rescaped my tank, and I used florabase as part of the substrate. It is known to leach ammonia, but I don't know at what level, I don't know if my filter can handle it or not. The fella in the shop gave me a bottle of ammo lock for free when I bought the florabase, and i'm unsure wether to use it or not. What do you guys think? I should add there is a handful of fish in there.