It also seems to affect only crypts. The sunset hygro and hygrophila difformis in the same tank do not show holes. The crypts showed a little ,elting (maybe 5-10% of leaves) when they were first planted, but that was months ago, and have showed no melting since then.
The tank has ecocomplete, and is about 5 months old. I haven't been dosing ferts, but I was giving the occasional shot of excel (maybe 2-3 times/week).
Any idea what kind of deficiency this is? I thought maybe potassium, but the lack of yellowing makes me wonder. Please don't ask for a picture, what I could take would not help.
The lack of yellowing makes me wonder if animals are munching on my plants. I have pearl gouramis, SAEs, Red Cherry Shrimp, one olive nerite snail, and a bunch of small snails of unknown species that were hitchikers on plants brought home. There are no signs of algae in the tank.
