Review on 🐠 Eheim Pro 4 Plus 250 Canister Filter for Aquariums up to 65 Gallons by Allie Diaz

Just like German cars (BMW) this piece of fine German technology has a very interesting and innovative technology. However, the question is, is it reliable or does it work all the time? The same applies to this EHEIM filter/pump. It is very difficult to get the pump/filter to work (pump water into the aquarium). If you unplug or lose power, you need to do the following: first disconnect the hoses, then: 1) remove literally all water from the canisters and containers. 2) remove all canisters. 3) reset everything. 4) Fill it up until the containers are full of water, 5) then plug it into an outlet. It will try to pump but it will freeze so you have to 6) do a single "PUSH" to suck it back up. I'm an engineer and wish this was more reliable and easier to use!