With 70 litres you’ve got a bit more wriggle room than me but fwiw I would be super cautious if you’ve not rigged and run a regulator before. The bubble counter and drop checker combo can become a beguiling source of certainty rather than relative and ballpark yardsticks. Same with Kh/ph charts and ph profiles.
At the very least I would rig it and run it on a spare, critter-free tank or bucket first just to make sure you’ve got the gear running tight and leak-free (which still puts the wind up me as I’ve only done it a couple of times). Also you’ll get a feel for just how sensitive the trim dial is and how long it takes from - solanoid on to dialled-in bubble rate.
I’m suggesting super caution and many, more experienced hands will not agree with me perhaps. I’m not saying I’m right by any stretch. I really don’t know much. Relative newbie to co2 with maybe just a pace or two head-start on where you find yourself now in fact. I’m only jumping in so you have more information to choose from and would hate for you to experience what I’ve just been through i.e. losing 6-7 beautiful Bloody Mary neos for no other reason than my knowledge and experience was outstripped by my availability of great toys.
Co2 is an amazing addition to a tank and it can be like giving plants Olympic-grade ‘roids but that can be a double edged sword if the knock-on effects are not understood and accounted for.
One thing I think I missed when watching the pros showing the allure of gas is that they have a great learning curve behind them and whilst those bubbles in the counter often run several bps, that’s on pretty large volumes often with very high turnover rates and superb agitation or off-period additional o2.
Guess what I’m saying is I totally get the co2 thing and will find a place for that shiny regulator in the near future but I’ve got my fingers burnt (as do some) along the way and it’s given me a REALLY healthy respect for it.
I hope you enjoy opening the box and putting that chunk of dials, valves and castings together and marrying it with ......a highly pressurised bottle of toxic gas
as much as I did i.e. A LOT
.
Sorry if I come across as pious or an old fart who’s scared of his own shadow but it’s offered with the best intentions and my own limitations laid bare Mrhoyo.
have fun
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