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Tetra
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Cardinal tetras are a showstopper fish because of their brilliant blue and red horizontal stripes that stand out in a planted aquarium. They sometimes get confused with neon tetras and green neon tetras, but in comparison, cardinal tetras have more red on their bodies and get slightly bigger (up to 2 inches or 5 cm). Additionally, they enjoy warmer waters and are frequently kept with discus, German blue rams, and Sterbai corydoras. Keep them well-fed because higher temperatures can increase their metabolism. For more info, see our full care guide.
