it depends greatly on what is your bps....the more u use, the faster your co2 will deplete....as my case, i'm having 2bps and my tank hasn't top up since more than half year ago!
it depends greatly on what is your bps....the more u use, the faster your co2 will deplete....as my case, i'm having 2bps and my tank hasn't top up since more than half year ago!
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Roughly 6~10 months when used with solenoid
consumption rate will depend on how many bubbles per second you are using.. to count, buy a bubble counter and attached to your regulator or solenoid..
on average, at 2bps and 10 hour per day, it should at least last you for 6 months or more..
think of how many hours sunlight we have per day.. that's the actual number of hours we should give the plants too.. as they will max out at certain hours and start to close up..
some plants only need up to 8 hours and some can last longer.. on average, 10 hours shld be sufficient for most plants.. looking back at the actual sunlight, sun start rising at 7am, and the actual sunlight start working around 8am.. by 4pm, the sunlight actually start to weaken and that's why some plant naturally need 8 hours.. while those light hungry plants will continue to work even with little sunlight thus these plants are those plants that continute to work even after the 8 hour mark in the tank.. so it is natural to see some plants producing a lot of bubble at certain hours and subsequently cutting off bubbles while some plants continue to bubble none stop..
in short, I never use more than 10 hours of light per day.. you must also consider how much sunlight your tank is receiving during the day.. this is to equal out the amount of darkness and daylight to promote healthy growth.. plant need darkness to absorb nutrients, to fully replenish for the next daylight.. while some plants are able to absorb in daylight but at lower rate..
from here you can tell when is the most efficient hour for plants to take up nutrients and when to dose nutrients.. very important to understand your plants before deciding on which nutrient dosing regime is best for you..
maybe if your buget allows, you might want to consider investing in a solenoid then?
Thanks bros for the advice - think should get a check valve. Hope it does not cost a bomb.
check valve are rather cheap, around a few dollars
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