Holes on plants

[Cardinal74]

Hi,

I notice black, brown spots and holes on my plants (Amazon and Wendi i think). What could be lacking? I have a CO2 system (1 bubble per sec) that is running from 3pm to 11pm. I am also using 2 3ft lights (30watts i think ) for my 2ft tanks. Please help. Let me know if you need more info. Thanks

[|squee|]

Check your CO2- 30ppm constant throughout photoperiod
Check your Macros- NPK is in sufficient quantities.
Check your Micros- I've a feeling it's this one that's causing the holes.

If all else fails, check your livestock. Yamatos and snails can cause those holes.