Bicarbonate Question

[jonnyf84]

Hi, my tap KH is 1/2dH, i just tested the tank i am cycling (100L) and it tests at 1dH for some reason. For this tank i am getting T5 lighting (will be about 3WPG) and CO2 either via a pressurized canister or a nutrafin setup. The problem is that with a KH this low and the addition of CO2 my PH will plummet and become very unstable. For the Nutrafin CO2 i know i can put a 1/2 tsp of Bicarb in with the yeast solution to act as a stabilizer.

My question is how much and how often will i need to add bicarb in a 100 litre tank with 25ppm of PRESSURIZED CO2, 3WPG and a KH of under 1dH?

Many Thanks for any help,
Jonny.

 

[drobbyb]

Hi, my tap KH is 1/2dH, i just tested the tank i am cycling (100L) and it tests at 1dH for some reason. For this tank i am getting T5 lighting (will be about 3WPG) and CO2 either via a pressurized canister or a nutrafin setup. The problem is that with a KH this low and the addition of CO2 my PH will plummet and become very unstable. For the Nutrafin CO2 i know i can put a 1/2 tsp of Bicarb in with the yeast solution to act as a stabilizer.

My question is how much and how often will i need to add bicarb in a 100 litre tank with 25ppm of PRESSURIZED CO2, 3WPG and a KH of under 1dH?

Many Thanks for any help,
Jonny.

I think you add bicarbonate until you hit 4dh. This will allow you to use CO2 safely.

Almost forgot. Here is a tool that will help you dose accurately: http/dataguru.org/misc/aquarium/calKH.asp

 

[jonnyf84]

fantastic, thankyou. I take it the website is american? just checking so i know to fill in the gallon section with US not UK gallons.

 

[drobbyb]

fantastic, thankyou. I take it the website is american? just checking so i know to fill in the gallon section with US not UK gallons.

It's US gallons.