Xenagoniates Tetra

Xenagoniates bondi is one of the most rarely seen Amazonian tetras in the hobby, originating from soft, acidic blackwater tributaries. Its body is largely transparent with a distinctive dark lateral blotch and fine melanophore speckling on the dorsal surface. It is a genuinely unusual-looking fish that generates significant interest among specialist collectors.

This species demands extreme blackwater conditions analogous to those required by Tucanoichthys or Axelrodia: ultra-soft, highly acidic water, heavy tannins, and stable, warm temperatures. Any compromise on these conditions leads to rapid health deterioration. It should be maintained in a dedicated species or near-species tank.

Feeding with fine micro-foods — baby brine shrimp nauplii, micro-pellets, and Cyclops nauplii — keeps this species healthy. Successful maintenance over the long term is a significant achievement for any blackwater specialist.

Water: 24–28°C, pH 4.5–6.5, ultra-soft (GH 0–5, KH 0–2); heavy tannins required. Tank: 60 L minimum; species or near-species blackwater tank; dark substrate, zero flow. Feeding: Baby brine shrimp nauplii, micro-pellets, Cyclops nauplii, nano powdered food. Breeding: Unreported in captivity; extreme blackwater conditions needed to attempt. Compatibility: Species-only or with equally tiny, peaceful blackwater specialists.