AHHH...macranda,makes me wish I still had a tank set up..but soon I
shall,,anyway to get to your question..I used amaquell for years,and I
never had a problem with it,as far as locking up any ferts.I used it by
itself and never had to use anything else..
My opinion is to just keep using it.I had planted tanks for years and
never noticed it being a detriment in any way,shape,or form..
Zenn,.(((((*

)))))*..NATURE ABHORS A VACUUM..*(((((