liquid carbon will work, could it be flow, if there is a lack of flow around those leafs, they obviously co2 will not be reaching the leafs? its all linked, flow, co2, ferts and light, even balance of all and your good

Well I have more than enough flow. Suppose it is possible that the plant is sitting I a dead spot. Wouldnt hurt to play with positioning of the hydor. Saying that tho the leaves do sway in the current. Its a mysteryZikofski said:liquid carbon will work, could it be flow, if there is a lack of flow around those leafs, they obviously co2 will not be reaching the leafs? its all linked, flow, co2, ferts and light, even balance of all and your good![]()
Thanx ian these are pretty new plants, well 3, 4 weeks old, and they are the oldest leaves. The new leaves look healthy so far so this makes perfect sense. Thank youian said:Look like old leaves to me, they will die, due to them being grown emmersed. They don't have the ability submersed leaves have of taking on c02. Chop em off.
Fantastic thank you once again. Thats put my mind to restian said:This is perfect time to be seeing the old leaves die off as well. These leaves will always die on an echinodorus, so expect the other leaves to eventually go like this.