[derick2724]

Anyone know the quickest way to bring down the ph in a 180 gallons. my Ph currently is 7.9 and 30ppm, oh yea does the co2 also bring down the ph after a while? Thanks

 

[retoid]

adding co2 will drop the pH yes.

read this

 

[derick2724]

how long and how much do i need in order to bring it down to atleast 6.5?

 

[retoid]

derick, i edited my first post. Read the info on the page i linked to.
Feel free to browse through the other information on that site. It's pretty much everything you need to know for a planted tank.

In depth of water chemistry

 

[Betowess]

I would get a 20 lb. tank of gas with a full CO2 regulator setup from Rexgrigg.com or Aquariumplants.com "Best". You will need a reactor from your canister filter outflow. If not familiar, there are loads of posts about CO2 to search.

 

[derick2724]

alright thanks guys, by the way i'm not using canister and i'm not even using reactor, because my tank is running under by a wet/dry filter so therefore i use 2 co2 diffuser rated up to 200 gallons and i leave near by the backflow so it can mix through the water.

 

[Burks]

Changing the pH too quickly could be harmful to sensitive fish. Just be careful.