Iron supplement.

[Zerocon]

I'm currently dosing Excel and normal Flourish in my 20 gallon 1 cap of each every 2 days when lights are turned on. I noticed that my plans are rapidly turning yellow and transparent.

I need a cheap iron supplement for them, anyone got any ideas?

 

[ceg4048]

Hi,
Plants rapidly turning yellow = Nitrogen failure.
Plants rapidly turning transparent = Carbon failure.

Cheers,

 

[Zerocon]

Oh, haha, Okay. Thanks