Review on Silent TARARIUM 3-in-1 Rain Filter: The Perfect Submersible Internal Filter for Betta Fish Tanks, Aquariums, and Turtle Tanks (1-15 Gal) by Tracy Erickson

I thought this would be the best filter for my Betta. The filter was supposed to be quiet, but it was very noisy. The waterfall was supposed to be useful for my betta but it didn't filter anything. When I woke up this morning my Betta was dead. She was a completely different color too. When the filter was put in, my betta was perfectly healthy. Using this new filter for several days killed my Betta. If you are looking to replace your fish, get this filter as your fish will be killed. In other words, this filter is a killer!