I have a heavy planted tank, lots of cherry shrimps, some small fish, and some unwanted horn snails. I keep the temp at 78 degree. i do a 50% water change every week, but my water stay milky cloudy color. I used to dosage co2, but my electronic solenoid broke and have fix. Im running to pc bulbs in a 30 cube. i know its a little high in lighten but again its heavy in plants. I have dosage excel some, but havent seen a differences. can anyone help?