Aquarium articles

Freshwater compatibility and stocking guides

Published TankMatcher notes on freshwater stocking, behavior, water parameters, and conservative planning.

Best fish for a 40-gallon tank

A 40-gallon aquarium is the size where freshwater stocking choices open up considerably. You have enough horizontal length and water volume to keep a...

Best stocking ideas for a 5-gallon tank

A 5-gallon tank is one of the most popular starter sizes, but it sits right at the edge of what most fish can tolerate long-term. The math is...

Best tank mates for cherry shrimp

Cherry shrimp (*Neocaridina davidi*) are peaceful 1.25-inch biofilm grazers that live in colonies and breed readily in stable freshwater tanks. The...