Hudson,
Sorry that you're still having difficulties with this. Does the tank look anything like the photo in post #9? Also can you remind us of the dosing?
Also, it seems like you were doing OK with the 30% setting of those lights, assuming they are at the same height as they were before. from re-reading those posts it looks like there were a couple of plants that didn't do well and mostly that was carpet plants. With high enough CO2 to be fatal there should not have been that problem. So we have to look at distribution again.
Can you track the movement of the water and see that it's flowing down the glass? Are the holes pointed horizontally? Can you take a series of pH readings before and throughout the photoperiod so we can see how the gas is dissolving? If you can take the water sample from the bottom near the substrate that might help.
Cheers,
Sorry that you're still having difficulties with this. Does the tank look anything like the photo in post #9? Also can you remind us of the dosing?
Also, it seems like you were doing OK with the 30% setting of those lights, assuming they are at the same height as they were before. from re-reading those posts it looks like there were a couple of plants that didn't do well and mostly that was carpet plants. With high enough CO2 to be fatal there should not have been that problem. So we have to look at distribution again.
Can you track the movement of the water and see that it's flowing down the glass? Are the holes pointed horizontally? Can you take a series of pH readings before and throughout the photoperiod so we can see how the gas is dissolving? If you can take the water sample from the bottom near the substrate that might help.
Cheers,