John (& Co)-- I've been thinking about CO2 also lately--what with new plants and new lights coming--and came back to read this thread again. What did you decide on? The no-solenoid approach also sounds good to me, I want something that is as simple as possible and very safe for the sake of the fish. I am not trying to win any awards, just give the plants a boost, so I don't need a system that I can push to the edge. I definitely don't want to be fooling around with it every day. My list of candidate parts is short since I just started research, but I was thinking about something like the Rex regulator kit<%20http://www.bestaquariumregulator.com/CO2.html>, without the solenoid, and with the high-end needle valve. Plus some sort of diffuser/bubble counter combo unit<http://www.greenleafaquariums.com/co2-diffusers/diffuser-spiro-900.html>, and one of those drop checker CO2 meters<http://www.aquariumslife.com/aquascaping/fertilizers-and-co2/drop-checke/>. MS On Sat, Oct 17, 2009 at 6:07 PM, J Clouse <johnaclouse@gmail.com> wrote: > I've been running three DIY CO2 setups for some time, and now I'm ready to > step up to a pressurized system. My research to date has me leaning > towards > the following, but I wanted to check with the group before I make any > investments. > > <http://sumoregulator.com/PremierLine.html>10 lb aluminum tank (Central > Welding?) > Sumo regulator <http://sumoregulator.com/PremierLine.html> > (2) Ideal 52-1-12 metering valves > (2) JBJ bubble counter > (2) Red Sea CO2 500 reactor > Flexible CO2 tubing (though I'm tempted to use something cheaper...) > > In looking at the options, it seems like running 24/7 without a solenoid > and > possibly running an airstone at night seems to be the simplest setup with > the least risk to pH (just uses up more CO2). > > I would like to use this setup to run *three* tanks. Two tanks in the > basement using the Red Sea reactors (running off of a the output of one of > the metering valves. The third tank is on the floor directly above the > basement setup. I would like to run the output of the second metering > valve > into a venturi on the intake of a Magnum 350 (currently doing this with (2) > DIY bottles). > > Any mistakes you can help avoid? Any recommendations for a simpler setup? > > Cheers, > John > > _______________________________________________ > GSAS-Member mailing list > GSAS-Member@thekrib.com > http://lists.thekrib.com/mailman/listinfo/gsas-member > > _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member