I saw a bunch of posts on this on thekrib, and since this is the same list, maybe someone here can answer my question in ENGLISH and not in a series of long words I cannot understand. I have a 10 gallon planted tank, and have just started co2 because I am getting a lot of brush and hair algaes, and the siamese algae eater and the oto just are not cutting it. I want to add some osmocote to the substrate monthly, and some liquid iron. My question deals with the liquid iron, but if someone has information on how many pellets of osmocote to add per month, I'd be grateful. The liquid iron product I'm talking about is called HiYield Liquid Iron. It also has other micronutrients.. here is the list of percentages: Sulfur 2.000 Copper 0.125 Iron 2.500 Manganese 0.250 Zinc 0.250 Derived from: Copper sulfate, Ferrous sulfate, Manganese Sulfate, and Zinc sulfate If someone could give me some idea of how much to add to my tank and how often, without referring me to some obscure scientificly written webpage which you need to be a chemist to understand, I would be entirely too grateful :) There's a reason I didn't do well in chemistry!!! Susan O Susan Ziegler / StampLady O o I have fishes o O Therefore O o I am. o ><}}}})o> ICQ UIN: 1337370 <o(}}}}>< ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!