Endlers vs. Guppies: Which is Hardier? (The Unbreakable Fish)
You are at the fish shop. Tank A has “Fancy Guppies”—big flowing tails, solid colors, moving slowly. Tank B has “Endlers”—tiny, neon-colored torpedoes zipping around like they drank too much coffee. They look similar. They are actually cousins (Poecilia reticulata vs. Poecilia wingei). But if you are asking “Which one is easier to keep alive?”, […]
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