Santarem Tetra

The Santarém population of Moenkhausia sanctaefilomenae collected from the lower Tapajós River near Santarém, Brazil, displays a slightly larger average body size and more pronounced deep-red iris coloration compared to typical material from the Paraguay and Paraná systems. Behaviorally and in terms of care requirements it is identical to other Red-eyed Tetra populations: very hardy, adaptable, energetic, and prolific. It thrives in large community aquariums where its vigorous schooling fills the mid-water column. An excellent, low-maintenance species for hobbyists seeking a reliable and striking schooling tetra.

Water: pH 6.0–7.5, temperature 22–28 °C; soft to moderately hard. Very tolerant of conditioned tap water. Tank: 80 L minimum; open mid-water swimming with peripheral planting and good filtration. Feeding: Omnivore; accepts all standard aquarium foods eagerly. Breeding: Prolific egg-scatterer; spawns easily in neutral water. Compatibility: Peaceful; widely compatible with most community species of similar size.