First run I did 18 hrs with a 6oow mh bulb on a rail system, this time I got two (2) four foot flourescents hung them along side my 600 mh on a rail. I start the day off with 4hrs under the flourescents only, then 2hrs with the 600 on the rail w/flourescesnt, then back to the floursecents (only )for 4hrs and so on for a 18hr cycle, comes out to 6hrs staggered with the 600 and 18 straight with the flourescents. Just started this system and was hoping for some feedback. I'm useing a drip system and re-useing the water, then i change it with fresh water every 7 to 10 days..