This was delivered to me on July 13th (picture 1) today is July 15th and it is crystal clear (picture 2) I will say, it is extremely over powered as the tank this is in is only 3 gallons BUT I have no doubts I will be able to clear my 40 gal with some time if I ever need to!

This AquaMiracle Aquarium Filtr is better than ANY Air Stone I'be tried. It came VERY well packed. It's evident a lot of care was taken in the creation of this device. It was extremely clean, organized and descriptive of it's use. With two options for use, a UV light, and multiple carbon filters with the ability to take it apart completely for cleaning, it's definitely a 10/10. My fish immediately starting coming to the middle of the tank as though they could tell the airflow was better. They were able to have a feeding while the filter was on which is helpful as well. You can adjust the flow speed, and turn/rotate the top of the filter to point the flow in any directin for the tank. I chose to use the aerating mode versus the rainfall, but both were successful. The video clip depicts it at "almost" max speed for visual purposes in a 45-Gallon tank. The rainfall mode is much slower moving that you would think it wasn't on, but it is and quite accomodating for a small tank with a breed of fish that prefer less water disturbance. I love the fact that there are UV capabilities and look forward to see if this will decrease my water changes. I think this is a GREAT filter option and addition for any tank. Do away with those air stones, and add some UV light to your tank. The timer makes sure you don't "over-do-it" while ensuring you fish and plant habitat have all they need to grow strong and healthy. The price also cannot be beat for all the multiple tank supporting options you'll receive.