Green Tank

I have a 20 gallon fish tank with two fish and my water keeps turning green I change the water and keep it clean I don’t keep my light on too long but after I changed all the water it got clear for a day then went right back to a nasty green I just want a clear tank I have thaI led light bar, I had a little dI'm light that was too dI'm so I got this one then it started getting cloudy green, someone help

 

I just read something interesting..... on another forum about algae bloom. "An algae bloom will settle itself given time because the excess algae will die off, but if you are doing "too much" cleaning (like 100% water change along with a filter clean and a gravel clean), then their will be enough algae in the water to start the cycle again. " You could always try a uv sterilizer. Don't know if that helps.....

 

but this has been happening for the last couple months

 

Try one of these:

Amazon.com : COODIA Internal Green Water Killer Filter Aquarium Tank U-V Light Submersible Disinfection Pump : Pet Supplies

Or

Amazon.com : AA Aquarium Green Killing Machine 3 Watt | Internal UV Sterilizer System with Power Head | Kills Algae, Bacteria, and Waterborne Pathogens | Easy, Submersible Installation : Pet Care Products : Pet Supplies

I used the second one on my tank for just a week and haven't had any green algae since

 

Providing your tank is cycled and established. you can do some deep gravel vacs and good size WC's. I had a 29 outside that I was battleing till I started do deeper cleaning and it literally cleared up within a week. That's another thought. Also overfeeding and leftover foods will cause it. What is your current substrate and what is your weekly WC%

 

Try one of these:

Amazon.com : COODIA Internal Green Water Killer Filter Aquarium Tank U-V Light Submersible Disinfection Pump : Pet Supplies

Or

Amazon.com : AA Aquarium Green Killing Machine 3 Watt | Internal UV Sterilizer System with Power Head | Kills Algae, Bacteria, and Waterborne Pathogens | Easy, Submersible Installation : Pet Care Products : Pet Supplies

I used the second one on my tank for just a week and haven't had any green algae since

does this help clear the water from a dark nasty green

 

I love my Green Killing Machines! I've used them for bacteria bloom when I've been too impatient to wait for it to clear naturally!

 

does this help clear the water from a dark nasty green

If it is algae then it will kill it.