•Cai•
Member
Hi all,
I'm currently trying to configure the best co2 injection for my 60litre planted tank. I have no fish or inverts in yet.
I've been checking ph with a ph pen every other day throughout injection period and light period.
Now, my pre-set ph I took down from tap was 7.3/7.4. I worked from this and aimed for the 1unit drop in ph which I was getting close to. I set my timer for 2.5 hours before lights on and have had it on for 6hours a day.
When I've checked my tank water today with ph pen before any co2 is to be injected I'm getting a reading of 7.7ph. That's a rise of 0.4. I checked my tap and it's still 7.3.
Why is this?
Can It possibly be down to having a high kh and GH within my tap water. As I'm using only tap water will the carbonates etc be getting left behind every water change causing the ph to rise?
I thought I was doing well until I've checked that reading today. I even recalibrated my ph pen as I thought that was problem.
My substrate is Ada Amazonia.
It's been cycling for 3weeks nearly now.
Hardscape is dragonstone which I believe is inert.
I get a green/yellow drop checker by lights off. Checking this morning it is blue.
Anyway, so much for the quick query lol
I'm currently trying to configure the best co2 injection for my 60litre planted tank. I have no fish or inverts in yet.
I've been checking ph with a ph pen every other day throughout injection period and light period.
Now, my pre-set ph I took down from tap was 7.3/7.4. I worked from this and aimed for the 1unit drop in ph which I was getting close to. I set my timer for 2.5 hours before lights on and have had it on for 6hours a day.
When I've checked my tank water today with ph pen before any co2 is to be injected I'm getting a reading of 7.7ph. That's a rise of 0.4. I checked my tap and it's still 7.3.
Why is this?
Can It possibly be down to having a high kh and GH within my tap water. As I'm using only tap water will the carbonates etc be getting left behind every water change causing the ph to rise?
I thought I was doing well until I've checked that reading today. I even recalibrated my ph pen as I thought that was problem.
My substrate is Ada Amazonia.
It's been cycling for 3weeks nearly now.
Hardscape is dragonstone which I believe is inert.
I get a green/yellow drop checker by lights off. Checking this morning it is blue.
Anyway, so much for the quick query lol