Originally Posted by Rolo737
I already know about optimal CO2, KH/pH charts and have Chucks Calculator...how did we get on this topic, I never asked for help about this.
I was wondering if there is some kind of CO2 alcohol gas seperator and if that check valve with filter will hurt my CO2. The filter looks nothing more than cotton fibers, but you never know.
And yes, KH goes up to 22 and far beyond! MY GH is the same, 22...I have liquid rock. I'm using the AP KH/GH test kit, it is reliable but is tetra better?
Sorry to have taken it off track, I just like to caution folks about knowing the limits. Glad to know you are up to speed on that.
If you make a bubble counter that is filled with water, it ought to strip out any alcohol -- though I have tasted mine and never noticed any alcohol, just a lot of fizz. It will also stripout the entrained yeast that I suspect as the culprit in the snot that forms on airstones and the end of tubing. The bubble counter/scrubber is a great thing to add, it can save fish if it allows you time to catch a foam up before it hits the tank, but it is another source of leaks, so observe carefully for awhile.
I was never lucky with those check valves, the only time I ever really counted on one it failed and I got nasty water on the carpet. I suspect the CO2 and water makes a carbonic acid that is hard on the plastic. The CO2 proof ones are so expensive, I am careful to leave the generator on top of the aquarium until it is producing enough gas with some pressure behind it to be sure no siphoning can occur.
Re tests; I understand from other posters that most GH and KH tests are fine, including both AP and Tetra.
With that high a KH, you may need more bubbles than that, indeed. With a KH of 9 I don't use much more than that in my 59 gallon tank (actually 28 bpm) to hit my 20 ppm target for CO2. With your water cut to a KH of 6, you could be on target, what does Chuck's CO2 calculator tell you?
With DIY CO2, all you can do is to know your target pH for proper CO2 levels and then add volume (more bottles or bigger bottles) or efficency (better diffusion, contact time, or reactors) until you reach that target without going into dangerous territory at the start when rates are at the highest. Great fun if you like to tinker.