Can You Stop Co2 After Startup?

Inspector413

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Are there any negative effect on plants that come from switching off the gas once the tank is on it's way to being established?
I'd like to start up a relatively easy keeper, 20gal planted tank for my office at work.
I was thinking of getting a small (rather) inexpensive CO2 kit, just to use on the plants, so I can get the maximum growth while my new tank cycled. Over the course of the first few weeks I was hoping to boost the plant growth before I started to introduce fish into the aquarium. When I run out of CO2, I let the tank coast for a bit and then decide whether I'd rather go with fertilizers or go back to CO2 for the long term. I really don't think I'd like to keep buying/refilling tanks over the long term, nor would I like to have the visible trappings of CO2 .
 

smee82

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Theres no point in buying co2 if you dont plan on keeping it. You should be able to hide a pressurized co2 canister in the stand so nothings visable and they dont need to refilled that often. Mine lasts me about 3 months in a 110g running 24/7 so your probably looking at 6 months for a 20g.
 

Zka17

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CO2 fluctuation is not a good idea - have the next CO2 tank ready when the first is empty. However, if you don't plan on long term using CO2, then I would go with Seachem Excel from the beginning.
 

Fahn

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A 5lb canister of CO2 would last you for almost a year on a tank that size. It is worth the startup cost as maintenance would entail a yearly fill-up or swap fee.
 

mlash

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Are there any negative effect on plants that come from switching off the gas once the tank is on it's way to being established?
I'd like to start up a relatively easy keeper, 20gal planted tank for my office at work.
I was thinking of getting a small (rather) inexpensive CO2 kit, just to use on the plants, so I can get the maximum growth while my new tank cycled. Over the course of the first few weeks I was hoping to boost the plant growth before I started to introduce fish into the aquarium. When I run out of CO2, I let the tank coast for a bit and then decide whether I'd rather go with fertilizers or go back to CO2 for the long term. I really don't think I'd like to keep buying/refilling tanks over the long term, nor would I like to have the visible trappings of CO2 .
I have a 20gal long and I use a 5lb bottle. Like Fahn said, it will last a very long time. I am running ~6bps and I use a Sera 1000 reactor so no equipment is in the tank and it's bubble free. Also you should use fertilizers in addition to the co2. There must be a balance between co2, ferts and lighting.
 




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