Porcupine Snail Bicolor - Clithon diadema
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The Porcupine Snail Bicolor is a small, armored nerite-type snail recognized for its spiked shell and two-tone coloration. Peaceful, hardy, and excellent at algae control, it’s a great addition to planted and nano aquariums.
Common Names: Porcupine Snail, Bicolor Porcupine Nerite
Scientific Name: Clithon diadema
Family: Neritidae
Size: 0.5–1 inch
Temperament: Peaceful
Difficulty: Easy
Native Region: Southeast Asia
Tank Size: Minimum 5 gallons
Temperature: 72–80°F
pH: 7.0–8.2
Hardness: Hard water preferred
Decor: Rocks, driftwood, and heavily planted tanks where they can graze on natural algae
• Can be kept singly or in small groups
• Tankmates: Safe with all peaceful fish, shrimp, and snails
• Diet: Primarily algae grazer – eats biofilm, diatoms, and will accept algae wafers
• Behavior: Active grazer that clings strongly to surfaces
• Plants: Generally plant-safe; rarely causes damage, even in delicate planted tanks