Aquarium monitoring systems are becoming increasingly popular for hobbyists who are tired of testing water parameters manually with various test kits, but who are also not quite ready, or just don’t intend, to make the leap into the market of full blown aquarium control. Aquarium monitors do all of the water testing for you, but avoid all of the complex programming required to automate some of the simplest aquarium related tasks. Instead, they relay information so that the hobbyist can take care of the issues themselves. That’s where devices like the Seneye come into play. We recently got the opportunity to perform an extremely in-depth review of the Seneye monitor, and after more than a month on our nano aquarium, we’re happy to report that the monitoring device told us plenty of useful information about our aquarium and it was really simple to use. The Seneye monitor is an interesting device, to say the least. It measures pH, temperature, and ammonia, while at the same time doubling as a light meter that can measure PAR, LUX, and Kelvin. It fixes to the side of the aquarium with a suction cup, and for measuring light it can be manually turned on its side for taking measurements at various depths. LED lights indicate when the power to the unit is on, as well as any alarms for the water parameters and when the Slide, which is the disposable portion of the device that makes ammonia and pH monitoring possible, needs to be replaced. The Seneye connects to a computer and/or a power source via USB. MORE: Hands on with the Seneye Aquarium Monitor