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Old 01-24-2013, 04:41 AM   #12
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Originally Posted by JeffHerr View Post
Thanks to all for the notes. Here are more details:
No CO2, only 7-9mL Excel daily
I have 2x65w T5 for 10hrs/day

I will say that because I'm not dosing CO2, but am supplementing Excel, I'm not sure what exactly my EI amounts should be.

Someone suggested I should be dosing twice as much KNO3 as I am. Yes? No?
I would dose abut 1/4 EI if you use non CO2 Excel dosing.
IME/IMO, add a lot more plants.

You likely only need 1 of those bulbs, not both, so if you can turn one on for say 5 hours then off, then the other on for the last 5 hours, that would be best.

This is 100% CO2 related.
Excel will take a little time for the plants to bounce back, and that is reflected in your growth.

Since you are only doing 1/4 EI, you likely can reduce the water changes once things settle down to monthly.

Excel: dose this amount DAILY: 25 mls.
Tom Barr
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