Stlrockguy
Aquarium Advice Addict
Didn't think about that Greg. I've been running carbon. What else would you recommend
At night the green seems to subside. When the lights come back on it will bloom again. I had this problem on a customer's tank and it ended up looking like antifreeze. You couldn't see 3" in. I tried water changes to no avail. I was going to cover the tank and the customer refused to have his display covered with trash bags for 5 days....lol..so i googled "green water outbreak" and decided to use the sterilizer. 3 days later the water was clear and then I shut it off for good.
Nope. Just halimeda.