Aquatic Plant Forum banner

1 - 2 of 2 Posts

·
Registered
Joined
·
4,116 Posts
Discussion Starter · #1 ·
That may sound like a dumb question but the for the last 10 days I've been having a hard time with a 240 gal. tank.

My 180 gal tank certainly uses less than 4 bubbles per second and the pH is 6.6 with KH of 4.

In that 240 gals. tank we have 4 bubbles per second the pH can't get below 7. There is a reactor in the tank that disolves virtually all the CO2 - no bubbles escape the reactor. There is no turbulent surface movement of the water in the tank. At present the KH is 5.

What bubble rate should we expect?

It may be important to mention that we got the KH to be 5 only after 4 water changes using RO water. Each water change was at least 50% of the tank volume. The initial KH was 16, GH =11, and pH=7.8.

--Nikolay
 

·
Registered
Joined
·
10 Posts
well generally I think it's

Litres x 13
--------------- = number of bubbles per minute
100

but I dont think this is right, as that would mean say in my tank I should have 1 bubble every 5 seconds, it's more like 1 every second!

If your KH is 5 and your ph is 7 that's about 16mg/l CO2, which is about right?

go here for more info ...

http://www.dennerle.de/ENGLISCH/Wasser/e_co2-tabelle.htm
 
1 - 2 of 2 Posts
Top