out of curiosity why are you only running lights for 3 hours a day?
I know a lot of people have had success using different methods of starting their tanks. I've tried some methods with success and some with no sucess. I decided to give this one a shot. I found this article on the ShrimpNow forum.The co2 at 5bps for two weeks seems a bit much. I ran my co2 close to 5 bps for the first two days. I'm running it at about 3 bps right now. Sounds crazy, but, after filling the tank I swear the plants started growing noticeably faster. Especially the HM.
If anyone had success with this method it would be great if they chimed in about it.
"Once the plants have filled in like shown above, it's time to fill the tank with water. Once the water is filled, CO2 injection is required and needs to be kept very high for 2 weeks close to 5 bubbles per second (bps). Afterward, bring it down to 3bps. Setup lights as per the plants requirements. (Cuba is not a very light demanding plant). Setup filter that you have decided on using. If you are using nutrient rich substrate like ADA Amazonia II, follow the below light and water change routine.
Week 1: 3 Hrs of Light , 50 % Water change once in 3 Days
Week 2: 5 Hrs of Light , 30 % Water change once in 3 Days
Week 3: 7 Hrs of Light , 30% Water change once a week
Week 4: 9 Hrs of Light , 30% Water change once a week
Your tank is completely cycled after this stage and if you follow the above routine you will have minimal algae issues except for some diatom algae during the first 2 weeks on the glass which is easily wiped off during your water changes.
NOTE: A correct combination of amount of Light , CO2 and nutrients is required to keep a planted tank free of algae bloom. In most cases it is excessive light that causes the problem. Keep your lighting moderate and you will have minimal algae issues."