When youโ€™re starting with a small space or a single betta, a compact tank can be a convenient and affordable entry point. Our team compared several models under 2 gallons, focusing on build quality, included accessories, and ease of maintenance. We looked for tanks that offer good value without sacrificing essential features like adequate filtration or lighting. While none of these tiny tanks replace a proper 5+ gallon setup, they can serve as temporary homes, shrimp tanks, or decorative accents. Here are our picks after weighing user feedback and hands-on assessment.