Family: Loricariidae
Macrotocinclus affinis — a Loricariidae from Brazil, South America, peaceful giant of the bottom, indifferent to mid-water life. Reaches 6.8–10 cm; singly or in small groups depending on species size. 20–26 °C.
A Loricariidae species native to Brazil, South America: Macrotocinclus affinis lives middle of the water column over warm freshwater streams and lakes. Peaceful giant of the bottom, indifferent to mid-water life. Adults reach 6.8–10 cm. In a community tank it pairs well with Other similar-sized bottom fish.
Difficulty: moderate. Peaceful giant of the bottom, indifferent to mid-water life. Singly or in small groups depending on species size.
Aim for 20–26 °C. Stable temperature matching the species origin; 20.0–26 °C typical for the family.
Adults reach 6.8–10 cm; it is middle of the water column. Plan for at least 120 litres.
Opportunistic bottom-feeder with a broad palate. It forages naturally over fine sand and gravel, so let some food reach the bottom.
Peaceful giant of the bottom, indifferent to mid-water life. Recommended tankmates: Other similar-sized bottom fish — Share the floor peaceably. Avoid Tiny fish that fit in its mouth — Vanish at night.
Its home waters are Brazil, South America — warm freshwater streams and lakes, with still to gentle current.
Low escape risk, but a lid is cheap insurance.
In the aquarium: egg-depositing in hollows; some guard, some abandon. Subtle external differences.