We just received a new model, SLW-30. Placed in the tank and powered-up. The aim here is keep the water moving in the main display tank. Why? That’s a longer story widely debated in mixed reef keeping and covered elsewhere in the website.
Our glass is 12mm thick, the magnet barely sticks. The manual says “best on glass <15 mm thick.
A suction cup is included and pre-attached so it can slid back and forth along the power cable to help secure the propeller head in the tank.
The pump is quiet and moves a fair amount of water at full speed. At around $80 bucks, at first glance, it’s likely a keeper. Please stay tuned …
Note that our budget was around $100 for this piece of equipment at this time.