Sucker Catfish – Live Algae Cleaning Fish for Aquariums

Sucker Catfish, also known as Plecos or Algae Eaters, are freshwater fish popular for their ability to keep aquariums clean by feeding on algae and leftover food. These bottom-dwelling fish are hardy, peaceful, and adapt well to a variety of tank environments.

They are an excellent addition to most community tanks, helping reduce algae growth on glass, decorations, and substrates. They are mostly active during the night but are commonly seen sticking to glass walls or rocks during the day.

Key Benefits

• Helps naturally clean algae from the tank

• Peaceful and compatible with most fish

• Low maintenance and hardy

• Adaptable to various water conditions

• Enhances overall tank health and cleanliness

Suitable For

• Freshwater aquariums

• Community fish tanks

• Aquarists looking for algae control solutions

• Tanks with goldfish, guppies, tetras, and other peaceful species

Feeding Instructions

While sucker catfish feed on algae, their diet should be supplemented with sinking wafers, boiled vegetables like zucchini or cucumber, and occasional protein sources like bloodworms. Feed once a day during the evening or when lights are dimmed.

Tank Requirements

• Minimum tank size: 60 liters

• Include rocks, driftwood, and hiding places

• Gentle water flow and stable water conditions

• Water temperature: 22°C to 28°C

• pH level: 6.5 to 7.5

• Partial water change every week

FAQs

Q: Will sucker catfish clean my tank completely?
They help control algae and food waste but should not be relied on as a complete cleaning solution. Regular tank maintenance is still necessary.

Q: How large do they grow?
Common types grow up to 4–6 inches in a home aquarium. Some larger species can grow over 12 inches if the tank size allows.

Q: Can they be kept alone?
Yes, they can be kept singly. If keeping more than one, ensure enough space and hiding spots to reduce territorial behavior.