When horses eat, the food is swallowed and passes down the esophagus into the stomach. There is a strong band of muscle called the cardiac sphincter around the esophagus at the stomach entrance. While all mammals have the cardiac sphincter which is a valve, it is different in horses for these reasons. It is extremely […]
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The Blue-green Chromis is a hardy inexpensive fish appropriate for a beginner. It is best kept in groups of 3 or more. It’s found throughout the tropical Indo-Pacific. Males are 3.1 in., the females smaller. These fish should be kept separate from predatory fish. The minimum tank size 13 gal. Although they are small, they […]