[Bert H]

I live in Florida and have the same situation. I wouldn't worry about it unless you start getting around 90, remember these are tropical fish and plants for the most part.
You mention your flow rate of co2, but not concentration. You need to know the actual concentration of co2. Check here: http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm. Do you add fertilizers? Your plants need macro and micronutrients for healthy growth.
HTH.

 

[Bert H]

Luke, do you have a needle valve with your system? If you don't, I would strongly recommend getting one to control your flow rate. If you do, then do control it with the needle valve. As far as controlling the algae, you also need to have the proper nutrients in there: nitrates, phosphates and potassium along with micronutrients. Once you get these in a balance and the tank matures, you should be on your way! :wink:
HTH.