tunze nano

I've had my Tunze Nano ATO setup since December and never had any issues. Besides air sometimes getting trapped in the pump, but it's pretty easy to shake out. Last week I noticed that the water was extremely low in the rear chamber of my AIO. There was plenty of water in the ATO reservoir (5...

alright so I have the tunze nano ato, when I first got this product, it was working fine, however after a few months it would not refill automatically, so if I want it to fill up I have to unplug and plug in the processing unit to fill it up, then it will still not fill automatically, so if...