Green Fish Tank Water Problem? Need Help Fixing

Topic: My fish tank is a 30 gallon with three goldfish. The water is super green in my fish aquarium. I’ve tried water changes on a daily routine because that usually fixes my cloudy water but it doesn’t fix the green water. What the heck is going on? I just moved down the road to a new apartment and now this happened. Could it be the water from this building?


Reply from Jeff K.
My first assumption is that the aquarium is getting way too much light because you need tons of light exposure to get that much algae in the water. What you are seeing is actual particles of small algae in the water. Millions if particles make it turn the color green. I’m thinking that since you moved… you probably placed your aquarium by a window that is getting way too much light. Aquariums need to be away from windows. Is that what is happening?


Reply from Author
Wow! You are totally right. I had no idea that if I put it near a window this would happen. I’m limited on space in the new apartment so I had to put it there. I put a blanket over the window for now. How can I get rid of the algae or will it go away on its own now that my tank is away from the window?


Reply from Jeff K.
There is a good chance that the algae will just I away from having it in darkness for a while. Try that and see what happens. Your fish won’t love it but oh well. Let me know if that works. Also, run your filter at full throttle to catch as much as that crap as possible.


Reply from Author
The combination of both of those two worked but the water is still not back to its normal clearness. I’m really picky about water clarity so is there a chemical in which I can really destroy this algae with to finally kill it for all.


Reply from Jeff K.
Not necessarily a chemical but a product will for surely work. Chemicals in fish tanks are kind of dead technology sort of say (except for sickness & disease). The product is called a UV Light Stabilizer. It’s a special wattage light that is designed to kill algae and certain small micro-organisms and bacterias within the water. It’s sort of a last resort though because aquarists believe them to also kill beneficial bacteria of the tank too. Are you sure large water changes won’t fix it. I would only use a UV stabilizer light if needed.


Reply from Author
Ill keep at the water changes and the filter. I have another spare filter I’m going to toss in there too. That should take care of it I hope. And if not I will get a UV light to kill that off. Thanks for the great info and help Jeff. You saves my butt here like honestly.


Reply from Jeff K.
No problem sir. The only reason I know so much about it is because the same thing has happened to me numerous times and I spent hours researching how to fix it and I even lost some prizes fish out of the ordeal. Algae can become bloody nasty at times. Good times mate! Take care.


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