So I trimmed alot of the plants that had algae. There seems to be pretty good growth, I'm spotting alot of new growth among the glosso and dwarf hair grass. I also did a 40% water change. My PH is really high, 7.8. I can't seem to get the hagen system to pump out more CO2. I did a search on here and people have posted some DIY recipes for hagens, but none of them seem to give more than a bubble per 8 sec. Does anyone have any DIY recipes specifically for the hagen canister set up? Will too much yeast cause problems? I was thinking of doubling the yeast (1/4 tsp) in the canister without adding baking soda. 1 cup of sugar and 3 cups of water. Currently I have one of the packets of yeast (i think about 1/8 tsp.) 1 cup of sugar and 3 cups of water. Any thoughts?