جهاز ذكي للتحكم في الطحالب داخل الأحواض المائية

It works well, I hope it lasts a long time. The settings are easy: you need to set the volume of the aquarium, which ranges from 50 liters to 700 liters, and then you need to set the TDS (Total Dissolved Solids), which can be measured with a common TDS tester, from less than 50 to 400; higher values can negatively affect the ability to provide sufficient bubbles.

The item matched the auction description and arrived 7 days after shipping.

The shipment arrived safely and the device is in operation.

Excellent quality of materials, fast shipping.

Super, I am very satisfied, it fulfills its function and we will see how long it lasts and what its quality is.