#tank-size

For first-time marine hobbyists, the size of your saltwater aquarium matters as it influences stability, equipment needs, and maintenance effort. A common starting point is a 20-40 gallon system. These sizes are easier to heat, filter, and cycle, and they let you learn the basics of water chemistry without the pricier commitments of large tanks. Why 20-40 gallons works well: larger water columns dampen temperature swings and make chemical fluctuations less drastic, giving you more time to respo... Read more »