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Old 04-02-2015, 12:04 PM   #11
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Tank here is 4ft with the co2 going into a tunze c02 diffuser on one side and there is a ph probe on the other side. The ph probe connects to an ISTA controller/regulator on the gas bottle. The probe turns off the gas once ph drops to 6.9 or so and then re-starts when ph lifts again.

Yourself?

I believe most just have a co2 ceramic stone - I had this at the start. It sat under an internal filter so the bubbles got sucked into the filter to mix around more.

I bought the lot as a package deal from a lfs. If you can find someone at the shop that does c02 injection then they can explain/help as well. It seems complicated but once up and running is little work.

Make sure you get a regulator with a fine needle valve. The ISTA doesn't have this and I find just changing the valve a fraction changes the gas flow rate a lot.



http://www.istaproducts.com/product/co2-controller/

http://www.aquaristiconline.com.au/p...-diffuser.html

http://www.amazon.com/Fluval-A7551-C.../dp/B0052M9886

http://aquatic-art.blogspot.com.au/2...arium.html?m=1
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Old 04-02-2015, 12:12 PM   #12
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Quote:
Originally Posted by bennyviet View Post
How did you count your bubbles per second?

Thanks. Benny....🐠

The air stone puts out fine micro bubbles and also a single large bubble. See link below. I just counted the number of large bubbles over a minute.

The reactor is a bit harder to see but I just look for the large bubbles coming out before they are chopped up in the reactor.

Bps is just a rough guide though. A drop checker is handy so you can check the co2 levels dissolved in your tank and cross-reference that to the ph/kh/co2 chart.


http://www.amazon.com/Fluval-Ceramic.../dp/B004GCO35G
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Old 04-02-2015, 12:22 PM   #13
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75 litres tank.

With co2 setup. See picture.
Got atomizer incase I did not like the glass diffuserClick image for larger version

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Thanks. Benny....🐠
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Old 04-02-2015, 12:25 PM   #14
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Click image for larger version

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Old 04-02-2015, 12:27 PM   #15
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Sorry about the wrong picture still getting used to this site. Thx for all advice

Thanks. Benny....🐠
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Old 04-02-2015, 08:15 PM   #16
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Looks good. I have a non-return valve as well just in case. Let us know how it turns out - there seems a thousand ways out there to get c02 into the tank.

I have the c02 come on about an hour before the lights.

Also I picked up a hand-held digital ph reader. Something like below. They don't last for ever but can be used to check how much you are dropping ph. Strictly optional though - I just like water testing


http://m.ebay.com.au/itm/Premium-Aqu...-/321238408822
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