Hello guys, I wanted to share an ESP32 integration i have implemented for Fluval Aquarium lights, it should support all their newer models that are version 4.0, the repository has a full guide on how to install and configure.
Hope it helps someone: GitHub - cryystyy/fluval-plant-pro-4-homeassistant: Control a Fluval Plant Pro 4.0 aquarium light from Home Assistant over Bluetooth via ESPHome - first public reverse-engineering of the Plant Pro 4.0 BLE protocol. · GitHub
I reverse engineered their Android app and implemented all Bluetooth commands the lights support.