On Monday 23 February 2004 17:09, Rachel wrote: > What's a stronger chelate? EDTA, DTPA, EDDHA are all stronger chelates than the gluconate used in Seachem's products. One or more iron fertilizers on the market use the stronger chelates. Roger Miller ------------------ To unsubscribe from this list, please send mail to majordomo@thekrib.com with "Unsubscribe aga-member" in the body of the message. Archives of this list can be found at http://lists.thekrib.com/aga-member/