is co2 a must.......

[Gary]

HI!
Is co2 a must for a tank with only low light plants and some fishs.[]

[Gary]

HI!
Is co2 a must for a tank with only low light plants and some fishs.[]

[Gary]

HI!
Is co2 a must for a tank with only low light plants and some fishs.[]

[Gary]

HI!
Is co2 a must for a tank with only low light plants and some fishs.[]

[timebomb]

CO2 is not for the fish. If you are only growing low-light plants, the answer would be you don't need CO2. But it would be such a pity not to try using CO2.

In the old days, it was believed that the CO2 given out by the fish alone would be enough to grow the plants. But that was when people were growing very little plants in their tanks and put it this way, the growth was miserable.

It was the discovery of CO2 injection that revolutionalise the hobby. With CO2 injection, you can have prolific and explosive plant growth. If you don't want to spend too much money buying a gas tank with regulator and all, DIY your own CO2 by using yeast with sugar. It's cheap and works just as well. The only problem is it's troublesome.

Loh K L

[Addie]

Hi, I have been using liquid carbon source instead of CO2 system. It is working alright but I am thinking of setting up a DIY CO2 system.

One question I have is do we need to turn off the CO2 when light is off? If so, this will be very troublesome as the DIY cannot use a timer to turn on/off. How do you guys go around this problem?

[wks]

I do not turn off my CO2 tank after the lights go out. I added an air stone just to play safe.

[Addie]

isn't air stone will cause high CO2 loss?

[wks]

isn't air stone will cause high CO2 loss?

Thats right. So I use the air stone only after the lights went out. This is to prevent CO2 poisoning to my yamato shrimps.

[tawauboy]

if you are using diy co2, it is very unlikely that there will be an overdose of co2.
anayway, you can control the rate of co2 produced by adjusting the amount of yeast.
to learn more check the aquatic faq section for diy co2 recipe.

co2 injection is worth it.
you can try by going without co2 for a few weeks first.
observe how your plants do.
inject co2 and observe your plants again.
then decide for youself if co2 injection is worth it.

[elmike]

Hi guys

I've not gone to the point of messing with CO2 but fr what I've read, a DIY CO2 contruct should have an air tubing that connects the bottle containing the yeast mixture to the airstone or bell, right? And you can put a valve (those used to control amt of air from air pumps) somewhere between but outside the tank, right? You can then control the amt of CO2 that goes into the tank, right? During the night when no photosynthesis takes place, could you not open this valve and dissipate the CO2 into the air?

Comments?

mike

[Sky Devil]

Do it the hassle free way. Buy the liquid CO2. I saw it at sam yick

[vinz]

Mike, if the valve is the type that releases pressure and not the kind that shuts completely, then it's ok. Never ever try to close the pipe completely.

The disadvantage of this is that it cannot be controlled by timer, so you have to be around to open/close it. The airpump method can be controlled by a timer.

[vinz]

Eh... Sky Devil, if you're talking about Flourish Excel, I and another forumer (is it you, bclee?) experience shrimp death from that. I emailed flourish about it, but they say they use it in tanks with shrimp and do have such problems.

[bclee]

Yes. I did say something like that. But just an observation, no scientific proof. Since, Seachem are sure that Flourish Excel do not harm shrimps, I trust them for that. They seemed quite professional to me.

I believe the liquid CO2 that Sky devil is a Jap brand stuff. Tried that myself and do not find it useful.

BC

[lorba]

hi all, read from some DIY CO2 recipe that it will not work in cold area, such as office compound. The water in my office, in left untouch, is 20-22C. Any other has experience using DIY Co2 in office?

[tawauboy]

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On 11/8/2002 5:36:12 PM

hi all, read from some DIY CO2 recipe that it will not work in cold area, such as office compound. The water in my office, in left untouch, is 20-22C. Any other has experience using DIY Co2 in office?
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in this case, keep the yeast/sugar solution in a pail of water.
drop a heater into the pail and set temperature to 28 deg.
should keep the yeast going.