I have only three species with damage, and I'm thinking of shortage of nutrient.
Question one, I'm sure what caused this two weeks ago: View attachment 1710
Then the other two:
View attachment 1708
View attachment 1709
Anybody has suggestions? To me it looks mobile nutrients, the Potamogeton wrightii has somewhat yellow tops when biomass of the tankis getting bigger. At that moment, the number of damage is getting bigger. I'm thinking in order of likelyness: C, N, P, K
Or maybe I have to throw in more nutrients to be sure what is or isn't... EI style
Question one, I'm sure what caused this two weeks ago: View attachment 1710
Then the other two:
View attachment 1708
View attachment 1709
Anybody has suggestions? To me it looks mobile nutrients, the Potamogeton wrightii has somewhat yellow tops when biomass of the tankis getting bigger. At that moment, the number of damage is getting bigger. I'm thinking in order of likelyness: C, N, P, K
Or maybe I have to throw in more nutrients to be sure what is or isn't... EI style