Review on MQ 7 5 23 Submersible Aquarium Changing by Pamela Smith

We had one in a 2.5 gallon betta tank and it lights up the tank quite well, but we tested that it worked in our 6 gallon tank and it just doesn't work . In my opinion this is fantastic for 3 gallons or less. Colors are decent with some fun color animations. The remote control is good and bad, the good starts with the amount of lighting options easily accessible, but that's where the good ends. The remote control must be within a few meters of the sensor and pointed directly at it. Kind of defeating the purpose of a remote control, but still nice to have. Just hold the remote next to the tank and it's a great starting light.