Review on 🌊 AQQA Wave Maker Pump: Enhancing Aquarium Circulation with 360° Rotatable Submersible Powerhead Pump by Jamie Lundgren

ordered 2 units of 15 watts each. both arrived quickly, well packaged. I have a 200 gallon tank with 3/4" thick acrylic walls that they are solidly mounted on. One block started making a faint rattling noise within a week, by the end of 3 weeks it was louder than the loud talking one angry person.water stopped circulating water sent back and got a replacement quickly today as I write this the other one I originally ordered is starting to rattle loudly.Concern.I don't know what I could have done wrong order failing them as I've been buying stuff like this for all my tanks for years I've never had a fancy Petco version (the more expensive one) I'll return the second 1 and see what happens If both units last longer than one Last month that's a small gain but I'd like to see at least a year Mixed results for me.