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 L# Planted Aquaria
  L# Do I need CO2?
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SubscribeDo I need CO2?
Posts: 101
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Registered: 09-Apr-2003
female usa
I have a 20g high planted tank with a T5 fixture that offers about 1.5 wpg. I was just given two Nutrafin Co2 units with the canisters and ladders but I'm not sure if my tank needs Co2. Everything I've read about Co2 and its variables just makes it more confusing so I'm wondering if I should even bother. I have low light plants like java ferns, anubias, crypts. Also, I have soft water, if that changes things.
Post InfoPosted 10-Aug-2009 16:07Profile AIM PM Edit Report 
Mega Fish
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Registered: 27-Sep-2003
female usa
With such low light and slow-growing plants, you won't need the CO2.

Post InfoPosted 10-Aug-2009 18:02Profile Homepage PM Edit Delete Report 
*Ultimate Fish Guru*
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male australia au-victoria
I have Anubias nana, various crypts in my 45 lt tank and I dont use Co2 at all.
I feed with all liquid Seachem Ferts.

Have a look in [link=My Profile][/link] for my tank info
Look here for my
Betta 11Gal Desktop & Placidity 5ft Community Tank Photos


Near enough is not good enough, therefore good enough is not near enough, and only your best will do.
Post InfoPosted 11-Aug-2009 02:53Profile PM Edit Delete Report 
Small Fry with Ketchup
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female australia us-maryland
With that little light you won't need C02


I upgraded my 20 gallons light to just over 2wpg, added a DIY CO2 and my javafern nearly exploded it was growing so fast.

If you can up the lights, and already have the CO2 I'd go for it


Post InfoPosted 11-Aug-2009 02:59Profile Homepage AIM MSN PM Edit Delete Report 
Fish Guru
What is this?
Posts: 2332
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Registered: 18-Jan-2005
male usa
I also don't think you really need to add the CO2 either with the amount of light and type of plants you are keeping.

Being that you do have it though I would hook it up and run it. Your plants will probably start growing a bit faster and for sure look much healthier.

I am currently running a 20G long with 1.5wpg of T8 lighting. I don't run CO2 on the tank but I do dose Flourish Excel(a liquid carbon source) when I remember. The Excel sure does wonders for the plant health and growth when I remember to dose it on a regular basis.

The two main things that our aquatic plants need is light and CO2. If one of them is missing then your growth and plant health will be limited. Even your low light plants still need CO2 to complete photosynthesis.

55G Planted tank thread
19G Container Pond
Post InfoPosted 12-Aug-2009 12:08Profile AIM PM Edit Delete Report 
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