Light

[Seanh84]

Can plants get too much light? I have amazon swords with a 25w t8 plantgrow tube which is on a timer 9 hours a day and using flora root tabs, the leaves look dirty but nothing comes off when i rub it! None of the leaves look perfectly green. The plants have been in for about 3 weeks

 

[BigJim]

Those leaves look pretty healthy to me. Most plants aren't a solid green anyways.

 

[Seanh84]

Does an airstone make a difference?

 

[BigJim]

Unless you're injecting CO2, an airstone doesn't make much difference to plants.

 

[uh.oh...]

well, it can a little. Not as much without injecting co2, but it still off gasses the co2 you build up. I find that will my plants have lots of light, and when they're getting good trace elements they turn a nice red hue

 

[mfdrookie516]

No, if anything, a bubbler adds co2... though it won't be enough to really make a difference or anything.

I agree, those are really nice sword leaves. Mine look nowhere near that nice.

 

[aqua_chem]

well, it can a little. Not as much without injecting co2, but it still off gasses the co2 you build up. I find that will my plants have lots of light, and when they're getting good trace elements they turn a nice red hue

If you're not injecting CO2, you won't be reducing CO2 levels with an air stone. Period. Unless your tank is ridiculously overstocked, and even then I'm dubious.