I have been using this equipment for 3… I have been using this equipment for 3 weeks straight and been following the instructions. I have good filtrations so for me the product claims of eliminating aquarium smells was what attracted me to purchase the product, so far it’s a big disappointment. My aquarium is not overcrowded, just 4 goldfish in a 55 gallons, feeding 3 times daily. Save your money, product is next to useless.

Doesn't seem to do much in my 75 I have one in my 30 gallon and it works great. I just bought this for my 75 gallon and I'm not seeing much of a difference at all. I have left it in for 3 months now to give it a chance, but no luck.

(Unbelievable )never would’ve thought… (Unbelievable )never would’ve thought this would work.It only took 36 hours to see a difference . Been doing aquariums for over 48 years. Wonderful product!!!!!

This thing does absolutely nothing This thing does absolutely nothing. I had two fish die after having this on the tank for a week so I took it off. No clearer, no less odor.. I got carbon and it cleared up and smelled better in a day. Going to be returning.

I purchased this item I purchased this item, so that I could look through side view and see clearly to the other side. Worked great. The only problem I had is hooking to the top rim of my aquarium. I have a wide rim on my aquarium.