meanwhile i have a diy 6 gallon and the shrimp all seem 'gassed' i even mixed co2 and air at the same time.. i assume my homemade drop checker was not working as it just always showed green... and my purchased one just came so i threw it in the tank... it's blue but i JUST put it together so that is to be expected... now to wait
i threw another drop checker in my cube to check that (don't know how i ordered 2 but with 5 tanks it's cool)
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