Is anyone out there growing successful planted tanks using flourish excel?
I can't believe your getting good growth with only two standard cfl bulbsI have a 55g a well, I started off using excel. I have 2 65w CFLs @ 6500k I had some growth in the tank, but it was really meh and I was going through a lot of excel. I switched to DIY Co2 using 4 2L coke bottles and 1 gatorade bottle as a "sump" and the growth has been 10x what excel gave me. I think excel is great for smaller tanks, but with a 55 it gets to be a bit taxing. Now I just replace my 2liters every 3-4 weeks. Eventually I'll go full on pressurized but I'm content with the growth rate I get now.