Rated 4 out of 5 by 9 reviewers.
Rated 5 out of 5 by VeZe This heater made my betta so happy! This is the perfect size for the fish bowl. I looked everywhere for a small heater and Drs F&S came through once again! March 29, 2016
Rated 5 out of 5 by Oneariesmama It's just exactly right My Beta tank is small and tall. This heater is small, and fits under the gravel just so. It's mistake proof, as it's pre-set, and seems to be keeping the water ~10 degrees warmer than the refrigerated office air. Since the installation of the heater my Beta no longer drifts toward the bottom of the tank, and seems more active as well. This heater does just exactly what it's supposed to do. I highly recommend it! February 21, 2014
Rated 5 out of 5 by rmrmsix It Really Works..! My Betta is happy as a clam .. Really .. Swims around more and making bubbles like during the summer.. Not intrusive or overly visable.. Just Works Good!!! November 5, 2013
Rated 5 out of 5 by CathyD The Bettatherm Betta Bowl Heater Found this little heater to be the perfect addition to my betta tank. It is underneath the gravel for esthetic value, and keeps the 1.5 gallon tank just the right temperature for my betta. Before I installed it, I noticed my fish was lethargic and not eating. After I placed it, he was happy, active and eating again! Great product for a small tank. August 18, 2012