Review on 🐠 FEDOUR Adjustable Aquarium Internal Filter: 4W 5W, Submersible Filter with Spray Bar & Water Pump for 1-40 Gallon Fish and Turtle Tank by Janett Schweizer

After receiving Revain and tuning everything worked great for a week! Then the water began pulsing from zero to high flow. And he started making little bubbles. I've tried contacting the manufacturer as the instructions say, call them with any problems. Only problem is I couldn't find the phone number even after googling it. Cleaned the unit and it worked for a few days and then started doing the same. I cleaned it again and put it back in the aquarium, same thing the next day. This time the cleaning didn't solve the problem and I'm afraid my fish might die. It's a 3 gallon aquarium with a goldfish, ghost shrimp and a snail trying to cycle. I would not recommend this device!