old leaves 'disintegrating' too fast.
All of a sudden I've got all the old leaves in my tank getting holes, very uniformly, between the veins, generally starting near the tips of the leaves then progressing until the entire leaf is basically a seive about a week or two later. All parameters and nutrients appear to be in their proper ranges.
This isn't just a case of a few leaves getting old, but a wholesale loss of about 1/2 the leaves in the tank, primarily on various swords and aponogonetons, but most of the rest of the plants too. Meanwhile, new growth is great, but good thing or there would be nothing left at all.
Any solutions? Thanks if you can help.
135 gal, 28 deg C., pH 6.5, Kh 4, 392w PC, pressurized CO2, 8 discus, 3 clown loach, 3 congo tetra, 2 bristlenose pleco, 2 farlowella.