So do I use the drops in the bottle with my tank water that came with the indicator? Is that the dKh reference...or do I need to pick something up? Ive never heard of this, but I have read about the ph, kh, and co2 relationship.

I will read up on the EI dosing while I wait for my dry ferts...thanks for the tip

I will also look at timers and see what i can figure out to get my co2 and airstone to work on a timer more like yours...I was also thinking of having my lights on timers so the 6700K is on first throughout the day, and then have the 10000K come on as a burst.....which is more recommended, like that, or the 4 hours on 2 hours off, and then 4 hours on again? I would like to try my luck with the two lights just maybe a lil different photoperiod? Would that be ok? I like the way it shows my reds, and my discus off. Also, if I do decide to half it, which tube is more recommended be the one to remain?

I tried to do the quote about the 3 day blackout...I really got a kick out of the "no peeking" Can I do the blackout after I get a round of dosing in with the dry ferts? say hopefully this weekend, or monday? I will also get some more plants in there No problems there

Thanks very much for your help....Im off to read up on EI, and Im gonna download your calc now
Eric