what plants grow well without co2!? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 11-28-2004, 07:38 AM Thread Starter
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what plants grow well without co2!?

for setting up my first planted tank,
i spent 200$ for lighting and 80$ for substrate
no money left for the co2 system.
so can you name me some plants that grow well without co2?
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post #2 of 5 (permalink) Old 11-28-2004, 12:16 PM
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We really need more details.

Tank size
Amount of light

Those just for starters.
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post #3 of 5 (permalink) Old 11-28-2004, 06:57 PM
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Crypts, Swords, some of the cheap stem plants like Ambulia, Wisteria and Water Sprite, Anubias, Java Ferns + Moss.

Of course, like Rex' questions suggest, there is more to this than finding the right plants. There is a lot to be said about balance. If you have a top notch 4 Watt/gal lighting system, and don't add CO2 (and fertilizers) your plants will either die or grow really weird and you would most likely end up with lots of different algae.

Useless thought:

I would have put the money into a CO2 system instead of into substrate.

Useful thought:

Look into DIY CO2, even if you don't get to astronomical levels like some here ( gasp) a little higher CO2 level goes a long way in helping plants to grow.


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post #4 of 5 (permalink) Old 11-28-2004, 07:44 PM
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Most plants can be grown in low-medium light/no CO2, even some "high light" plants. They will grow much slower of course, but can be very healthy and actually have good color as well.


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40w T6 ODNO4x, no CO2. Discus grow out.
10gallon Tonina tank, 2x15w T6 ODNO 4x
---------------------
I will do aquascapes after I collect all the plant species and grow them to perfection.
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post #5 of 5 (permalink) Old 11-28-2004, 09:50 PM
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I agree that I would have prioritized the CO2 above the substrate in just about every case. The only exception is if you are planning on following up with CO2 in just a few bmonths. Then I suppose it would be smart to go with an enriched substrate up front.
But the fact that you're asking for non-CO2 plants hints at quite a bit of time before you'll be adding CO2. I'm not one to cry about spilled milk, though, so right now you are doing the right thing by looking for plants that might do well without CO2.

Generally, plants that will do well without CO2 are plants that will do well with low light. The reason for this is that, without CO2, you are not going to be able to utlize all of your intense lighting. You will most likely end up with algae problems since algae will grow in just about any CO2 level.
So I would keep your lighting under 2pwg for now (disconnect lights if necessary) and stick with Amazon Swords, Cabomba, Hygrophila polysperma, Java Fern, Anubias and some floating plants. The floating plants are important in a non-CO2 tank since floating plants can easily obtain CO2 from the atmosphere. Fast growing floaters like riccia, glosso, and water sprite will keep nutrients in check.
Hopefully you can set up a CO2 system in the near future, though, and broaden you plant availability.

- Sam P -

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