I spent the last 30+ years building networks… I am or have been a Cisco, HP/Aruba, Ruckus, etc. partner. You can have the best APs in the world, interference is environmental. But, more importantly the client chipsets, antennas and software stacks in most of the IoT devices are garbage.
For equipment such as an aquarium controller, wired Ethernet is exponentially more appropriate and reliable, especially if the connection is required for functionality or critical control.
I'm a triple CCIE and I think 99% of the time you can overcome environmental limitations.
I totally agree IoT stuff tends to be garbage but the Hydros stuff is reliable enough because the WiFi is totally optional. The cloud checkins are just for data and configuration and always bluetooth have a bluetooth backup. TX retries aren't an issue since it's not real time and a couple of failures here and there isn't an issue. I haven't had any issues where I e.g., had to completely repair it like is common with some other IoT manufacturers.
