James Flexton
Member
Hi All,
im trying to work out the level of co2 in my tank. however the water here is very hard.
ive been in touch with the water company and they said the water is KH 17.8. so on that basis im aiming for a PH of around 7.2 to have 25ppm co2.
however when my test kit (so shoot me down in flames ceg!) indicates around 7 ish the drop checker with 4KH water in it is blue rather than green.
in order to get a green drop checker i have to pump in around 5 bubbles per second to the inline diffuser and in that instance the PH is reading around 6.3 however looking at a co2 chart with my KH being so high at a PH of 6.3 im at around the 200/250ppm co2 level which is 10 times what im aiming for.
so seeing as both measurements (drop checker and api test kit) are basically the devil incarnate test kits then which is wrong.
and i know trial and error is the answer and let the plants tell me however i dont want to poison the fish when i put them in the tank further down the line if in 10x the co2 i need to be.
help please, im going round in circles..
(tank is in the journals section - "twin peaks")
cheers
im trying to work out the level of co2 in my tank. however the water here is very hard.
ive been in touch with the water company and they said the water is KH 17.8. so on that basis im aiming for a PH of around 7.2 to have 25ppm co2.
however when my test kit (so shoot me down in flames ceg!) indicates around 7 ish the drop checker with 4KH water in it is blue rather than green.
in order to get a green drop checker i have to pump in around 5 bubbles per second to the inline diffuser and in that instance the PH is reading around 6.3 however looking at a co2 chart with my KH being so high at a PH of 6.3 im at around the 200/250ppm co2 level which is 10 times what im aiming for.
so seeing as both measurements (drop checker and api test kit) are basically the devil incarnate test kits then which is wrong.
and i know trial and error is the answer and let the plants tell me however i dont want to poison the fish when i put them in the tank further down the line if in 10x the co2 i need to be.
help please, im going round in circles..
(tank is in the journals section - "twin peaks")
cheers