tag:blogger.com,1999:blog-1845435143113442988.post5893000316486618679..comments2024-03-25T13:21:42.754+08:00Comments on Affnan's Aquaponics: Aquaponics - PH TestUnknownnoreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1845435143113442988.post-43038099282784999282011-01-23T02:00:40.681+08:002011-01-23T02:00:40.681+08:00No confirmation on Guinness, since I use scrap iro...No confirmation on Guinness, since I use scrap iron which is far cheaper. On how to chelate it, beats me, I think its more of a chemical process to produce such compound.Anonhttps://www.blogger.com/profile/15739198757221045316noreply@blogger.comtag:blogger.com,1999:blog-1845435143113442988.post-83211861332840761052011-01-22T01:09:57.027+08:002011-01-22T01:09:57.027+08:00Did you ever get a confirmation on the Guiness? I...Did you ever get a confirmation on the Guiness? I've hung a rusty old chain into the side of my tank and buried a few rusty nails in my GBs. My understanding is that unchelated iron can be aborbed by plants, but only at the right PH range. Iron apparently has a pretty tight PH range in which it can be absorbed freely (unchelated). Chelated iron, on the other hand, can be absorbed in a much broader range. Unfortunately, I cannot get chelated iron where I am at. Any ideas on how to chelate it?<br />-Farmer BrownPatrickhttps://www.blogger.com/profile/16218126695146412807noreply@blogger.com