All my Cryptocorynes seem to have perfect holes in their leaves:
http://www.ncasali.demon.co.uk/Plant...oryneHoles.jpg

It seems like it's getting worse recently. I dosed with nitrate
experimentally for the first time, so I don't know if that is a
coincidence. The amount of fish food I give seems to maintain a nitrate
level of around 12 mg/L even with the tank completely planted. This must
be its equilibrium level.

Could it be snails?

Nikki