substrate ferts for sandy bottoms
gonna be converting my planted discus tank from fine gravel to sand, as i think it looks better.
my question is.... can anyone recommend and non-layered fertiliser that wont ruin the look of the sand.
the reason i dont want to use something like laterite on a bottom layer, is that i live in rented accomodation, so may move reasonably soon. i may also be upgrading to a larger tank this year. the movement would mix any layered substrates and cause a mighty mess.