I have 11.7 on the KH, is that twice as much as I should have for good plant growth? I read 6 dkh is good for plants, is this true? Looking at the chart that means I only have 3.4 on the co2 because my PH is 8.0. Out of the faucet my water is 8.0. and very very hard water.
So what would you knowledgeable plant people do? Buffer the water to get the Ph where it needs to be and run the co2. The co2 will get the ph down also but won't the buffering help? It is very hard to get my PH to go down. I use to try with PH decreaser but it would never go under 7.8, without overdosing which would hurt the fish.
I am running 3 watts PG on my 80 and 55 and soon to be running 3.5 on my 46 gallon.
If you were in my shoes how would you approach this situation knowing all my Numbers? I really want the co2 where it needs to be because i bet if I got that going My plants would be WWWonderful!!! Since they look pretty good now.
PLease remember I don't want to do anything to hurt the fishies. Looking at the chart i need to get the PH to at least 7.2 and 8 on the KH, this will give me 15 on the co2 which is the minimum I should have. won't dropping the PH that much hurt the fish or it won't if it's done gradually with co2? Can you go into this in your reply so I feel safe for the fish.
Right now I am almost done making one of these http://www.qsl.net/w2wdx/aquaria/diyco2.html#3
. so this should produce enough CO2
Please let me know, thanks for your time