Awesome looking tank, that is coming along very well. I did notice that your drop checker looks rather blue. Now this might just be how color is displayed on my screen, or it could mean that your CO2 is too low. Try increasing your bubble rate a bit, and it might also help to place you diffuser closer to your lily pipe to help distribute the co2 evenly across your tank.
Thanks! I got the Lily pipes from aquatic magic. They seemed to have the best pricing on a lot of things and honestly after I got them I am very pleased with everything. They ship from overseas so it does take about nine business days or so at most to get to you but the pricing is beyond comparison in my opinion.
I did take some advice though and I moved the diffuser again. Originally I tried to do that but for whatever reason it didn't work out. Looks like it is actually diffusing the CO2 with the flow of the water this time. I also reduced the photoperiod to eight hours. It was previously set to about 12. Ha ha ha!