Do I need a Co2 system? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 03-31-2012, 01:34 AM Thread Starter
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Do I need a Co2 system?

Hi there, I have a 25 gallon planted tank. I just finished planting it in the last week, I'am wondering if I need a Co2 system? I have 16 live plants in my tank that is FULLY stocked or maybe a little over, Damb guppys keep having babys!! . The plants are:
2 Hygrophila Corymbosa
8 Java Ferns
1 clump of java moss
1 Rubin Sword
3 Anubias
1 Bacopa Monnieri
I really know nothing about Co2 systems other then I know plants feed off of the Co2, But at first I thought the Co2 the fish give off would be enough. I'am also adding a liquid fertilizer to the tank once a week. The main reason I'am asking is because the Rubin is starting to get brown spots on the ends of some of it's leaves? And one of the Hygrophila's are also starting to look a little brown on some of the leaves. I have my lights set on a timer for 10 hrs a day: 2 15 watt mini compact fluoresents. Any advise would be appreciated.
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post #2 of 6 Old 03-31-2012, 05:54 AM
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No, CO2 isn't needed unless you have bright lights.

What color spectrum are your lights? And what fertalizer are you using?

It could just be that the plants you bought have emersed form leaves, and the plants are switching to their submerged form.

Do you have pictures?
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post #3 of 6 Old 03-31-2012, 12:32 PM Thread Starter
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I believe the light spectrum is 6500K and the fert. that I use is the Nutrafin Plant Gro. Here's some Pics' of the Rubin.
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post #4 of 6 Old 03-31-2012, 02:06 PM
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I wouldn't worry. Those are the existing leaves and they normally yellow and die off when the plant is moved to a new environment. I would also suspect they are emersed leaves [common on purchased plants as nurseries find it less expensive and faster to grow plants emersed] and these will all yellow and die as the new submersed leaves form from the centre of the crown of the plant.

On the other issues, no you won't need CO2. CO2 occurs from fish and plants during respiration, but much more occurs from the breakdown of organics in the substrate by bacteria. Which is why we don't vacuum the substrate in planted tanks. Let nature do the majority of the work for you.

The light I am not personally familiar with, but it sound adequate. The fertilizer is not the best, there are nutrients missing. I recommend two, Seachem's Flourish Comprehensive Supplement or Brightwell Aquatics' FlorinMulti. Both contain all essential nutrients in proportion. Once a week dose is sufficient in most cases.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #5 of 6 Old 03-31-2012, 02:36 PM Thread Starter
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Thanks Byron, I can breath a little easyer now! I know those Co2 systems aren't cheap, and the lighting is the a Life-Glo screw in Fluorescent. My wife would'nt let me buy a whole new lighting set up, so I had to go cheaper. And I'll look for the fertilizer you mentioned.
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post #6 of 6 Old 03-31-2012, 03:14 PM
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Quote:
Originally Posted by Chris7 View Post
Thanks Byron, I can breath a little easyer now! I know those Co2 systems aren't cheap, and the lighting is the a Life-Glo screw in Fluorescent. My wife would'nt let me buy a whole new lighting set up, so I had to go cheaper. And I'll look for the fertilizer you mentioned.
I see you're in Canada...you can get these fertilizers online from Canadian suppiers and at less cost than most stores.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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