Recently I've had terrible issues connected with adding much iron. I added about 0.5 ppm iron and 0.25 of manganese and water turned cloudy and in two day all the plants were covered with Rhizoclonium algae (long, slimy threads). Additionally, plants got terrible chlorosis and water smelled awfully !
I repeated this experiment several times always with the same results - horrible algae hell and chlorosis. My tank looked like an interior of cesspit !
In my opinion the chlorosis is caused by hindering molybdenum and manganese uptake by excess iron.
Also high potassium doses (which are good for some plants) cause chlorosis. So far i haven't solved the problem...
I repeated this experiment several times always with the same results - horrible algae hell and chlorosis. My tank looked like an interior of cesspit !
In my opinion the chlorosis is caused by hindering molybdenum and manganese uptake by excess iron.
Also high potassium doses (which are good for some plants) cause chlorosis. So far i haven't solved the problem...