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Coral Red Pencilfish: A Comprehensive Care Guide (Nannostomus mortenthaleri)
by Bob Steenfott March 11, 2026

Coral Red Pencilfish (Nannostomus mortenthaleri) are tiny freshwater fish known for their intense red coloration and peaceful temperament. Learn about Coral Red Pencilfish care, tank size, diet, water parameters, and compatible tank mates.

Posted in coral red pencilfish, freshwater schooling fish, Nannostomus mortenthaleri, nano aquarium fish, pencilfish care, schooling fish, south american fish

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