CO2 and fertilizer - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 13 Old 12-20-2009, 03:36 PM
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A fire will "snuff out" when it runs out of oxygen completely. If there's still a steady stream of oxygen, even at a low level, the fire will still burn.

In a planted tank, CO2 is still added to the water by either the fish or the air exchange at the waters surface if the Co2 level is real low. By limiting the CO2, it simply slows down the plant growth. If you want the plants to grow faster, then you'd add CO2 or Excel. I use Excel although it's important to note that CO2 and Excel are not 100% the same. But I do like the results I've had with Excel. What I've found is with the plants I chose, they grow too fast. Seems like I'm constantly cutting and replanting them. That's why I wouldn't use injected CO2. But I can certainly see the appeal if you wanted to grow more challenging plants.
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post #12 of 13 Old 12-20-2009, 10:50 PM
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I really want to thank all of you. I'm learning a lot. I'd like to stay low tech as well. No co2 but I am finding it difficult to find a nice looking light fixture that isn't jacked way up with power. The old fashion ramped front cheap ones that usually come with tank combos just don't do it for me. I'm trying to find a happy medium. Even if it takes 2 lower powered 24 inch fixtures put end to end in the center of the tank to reach the 48" span of my 55g tank. (sigh)

“He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors”
Thomas Jefferson quote
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post #13 of 13 Old 12-21-2009, 09:30 AM
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The all-glass twin tube (80 total watts) or the triple tube (96 total watts) would be a good choice. I use the triple tube in my 55 gal tank. You can't go wrong with either one. Be sure to get the twin tube glass tops that go with it. The center glass strip in the standard glass tops are not wide enough to accommodate the light fixture.
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