Dwarf Pleco haroldoi – Parotocinclus haroldoi | Rare mini catfish & natural algae eater

The Dwarf Pleco haroldoi ( Parotocinclus haroldoi ) is a rare, small armored catfish from the clear, shallow flowing waters of Brazil. Reaching a maximum size of only about 4 cm, it is one of the smallest members of its family and is particularly popular with enthusiasts of naturalistic, planted aquariums.

Its fine, light-colored markings on a brownish background and its calm demeanor make it an inconspicuous yet extremely useful fish. As an effective algae eater, it ensures clean plant leaves and roots without damaging them – ideal for aquascapes and nano aquariums.

🌿 Characteristics & Attitude:
🐠 Fish size: L (approx. 4 cm)
🌎 Origin: Brazil – Wild caught
🌡️ Temperature: 23-27°C
💧 pH value: 6.0–7.5
⚖️ Total hardness: up to 15 °dGH
🐟 Social behavior: Peaceful, schooling fish (from 5 animals)
🌾 Aquarium: From 60 liters, with plants, roots, current & hiding places

🍽️ Feeding:
The Parotocinclus haroldoi feeds primarily on algae and microorganisms. In aquariums, it also readily accepts spirulina, seaweed wafers, vegetable chips, blanched cucumber, and fine frozen food.

💡 Tip:
A well-established, planted aquarium with soft, gently flowing water is ideal. The Dwarf Pleco haroldoi displays its natural, calm behavior particularly well in small groups.

👉 Conclusion:
The Dwarf Pleco haroldoi ( Parotocinclus haroldoi ) is a peaceful, small wild-caught fish with a useful algae-eating function – perfect for planted nano and community aquariums.