I have heard that adding iron to the water will help with the color of the fish.What will this do to the chemistry of the water?Will the hardness or ph. be affected in any way?I was thinking of trying some,but was worried about water chemistry as I have some tanks with the ph. below 5 for my blackwater spieces.If it does nothing to the water it might be worth a try as it would benifit the plants.Thanks for any thoughts on this. Vern ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!