Black Phantom Tetra Care Guide: Tank Setup, Diet & Tankmates
The black phantom tetra (Hyphessobrycon megalopterus) is one of the most underrated schooling fish in the hobby. It’s peaceful, hardy, easy to feed, and the males put on a charming “shadow-boxing” display that brings a planted tank to life. If you want a fish with personality that won’t outgrow a community setup, the black phantom tetra is a fantastic choice. 🐠
Black phantom tetra at a glance 📋
These are small, deep-bodied tetras reaching about 1.5–2 inches. They’re smoky silver-gray with a dark vertical shoulder spot ringed in iridescent blue. Males are larger-finned and more dramatic; females show a subtle red tint near the fins. Expect a lifespan of 3–5 years with good care. For a broader look at the family, see our tetra care basics and complete guide to freshwater tetras.
Tank size & setup 🌿
A group is happy in a 20-gallon or larger tank with plenty of length for swimming. They look their best in a planted layout with darker substrate, driftwood, and some open water in front — the contrast really makes their colors pop. Our best fish for a planted aquarium guide pairs perfectly if you’re aquascaping around them.
Water parameters 💧
Black phantom tetras are adaptable but prefer soft to moderately hard, slightly acidic to neutral water (pH 6.0–7.5) and temperatures of 72–79°F. They appreciate stable, mature water with gentle flow. Acclimate slowly and avoid sudden swings — like most tetras, consistency matters more than chasing exact numbers.
Diet & feeding 🍚
They’re easy-going omnivores. Offer a quality micro-pellet or flake as a staple and rotate in frozen or freeze-dried treats like daphnia, brine shrimp, and bloodworms to deepen color and condition for spawning. Feed small amounts once or twice a day. See our best fish food for community tanks for specific picks.
Temperament & schooling 🐟
Black phantoms are peaceful and best kept in groups of six or more — in a proper school, rival males flare and “spar” harmlessly, which is the main reason to keep them. Solo fish are shy and dull, so never keep just one. They’re a great pick for a peaceful community; browse more options in our best schooling fish roundup.
Tankmates 🤝
Pair them with other calm community fish: rasboras, corydoras, peaceful gouramis, and other tetras. They mix beautifully with the related black neon tetra and Columbian tetra. Avoid large or aggressive fish and notorious fin-nippers. For a striking warm-tone display, keep them alongside their cousins the red phantom tetra and yellow phantom tetra.
Breeding 🥚
They’re egg-scatterers that can be bred in a dimly lit tank with fine-leaved plants or a spawning mop and soft, slightly acidic water. Condition a pair on live and frozen foods, then remove the adults after spawning since they’ll eat the eggs. Fry hatch in a couple of days and take infusoria, then baby brine shrimp.
The bottom line
The black phantom tetra is hardy, peaceful, and full of character — an ideal centerpiece school for a planted community tank. Keep a group of six or more, feed a varied diet, and give them stable water, and they’ll reward you with constant activity and those signature male displays. Ready to start a school? Check out our tetra collection. 🐠