Beurre blanc
11-27-2012, 07:11 PM
Hello guys. I'm wondering what is a acceptable ph variation for a discus. The reason why i am asking is that my KH is a little bit low and therefor it dosn't buffer well enough. When i do my 40-60% water changes the ph will normaly go up to a 6,9 at maximum. My Co2 system will then kick in and start producing as it's set on auto-ph with a KH of 3 which means the best ph is 6.6 (also where i want it). The ph will then drop in 2-3 hours down to about 6,56 in ph, making the co2 production stop and the ph change get slower. Over the next 10-14 hours the ph will drop lower, down to 6,33 which is the lowest iv'e seen it. At 6.33 the ph stabilizes and stays there to my next water change, going up again to 6.9 when i'm done.
What i'm hoping to achive here is to find a way where i can have my ph stable at about 6,6-6,7 or as close as possible. That way the co2 system can regulate itself when it's enough co2 instead of the system stopping becaouse the ph is to low. The cheapset and so far best way to raise my KH has been to use baking soda. However what i'm wondering is it any of you guys that have any better suggestions? Also since this is a planted tank with discus i want to keep ph changes at a minimum. The changes i'm explaining here will it cause stress to the fish, or is it small enough to them not being bothered? Thanks for any help :)
Fredrik
What i'm hoping to achive here is to find a way where i can have my ph stable at about 6,6-6,7 or as close as possible. That way the co2 system can regulate itself when it's enough co2 instead of the system stopping becaouse the ph is to low. The cheapset and so far best way to raise my KH has been to use baking soda. However what i'm wondering is it any of you guys that have any better suggestions? Also since this is a planted tank with discus i want to keep ph changes at a minimum. The changes i'm explaining here will it cause stress to the fish, or is it small enough to them not being bothered? Thanks for any help :)
Fredrik