Hey guys! After stalking the forum for a long time. I decided to do a pressurized CO2 system. I started off with a 12 gallon fluval edge with 2 corkscrew Val's, 2 patches of microsword, and planted a bunch of DHG. I originally had a DIY co2 system, but just upgraded to a paintball tank system. I have a couple questions that I hope the more experienced posters can answer. I'm running the stock lights plus I added a flu all full spectrum plant light. I have my co2 and lights on timers. The co2 comes on at 7am, and the lights come on at 8. The co2 turns off at 9pm and the lights at 10pm. The drop checker registers borderline yellow, but the fish don't seem too bothered. Question 1, should I turn the co2 up a little more? Question 2, does the photoperiod seem too long? So far, the algae I had in the tank cleared up, and the plants seem to be responding well, although slowly. Also, should I start introducing any new ferts? I have a group of 6 Tiger Barbs, that seem to fertilize pretty well. My ph is just under 7, and everything else is coming in at zeros using the API test kit. Any input would be greatly appreciated