TETRA HEAD AND TAIL LIGHT 3- 4 cm

Head and Tail Light Tetra (Hemigrammus ocellifer, also known as Beacon Tetra or Beacon Fish). These are hardy, peaceful South American tetras named for the reflective copper/orange spots near the gill cover and at the base of the tail that catch the light. They are active mid-water schoolers and one of the easier tetras for community setups. Keep them in a school of at least 6, preferably 8–10 or more for natural behaviour, reduced stress, and better colour. They do well in blackwater-style or standard community planted tanks. Leaf litter (e.g., Indian almond/catappa leaves) can be used optionally for a more natural look and mild tannins.

NOTE: Keeping alone/in tiny groups is the main trigger for problems (e.g., ich or fin issues).

TANK SET UP: Larger (longer) tanks are better, as they are active swimmers that appreciate horizontal space.

• Dark substrate (sand or fine gravel) helps their spots stand out.

• Live or artificial plants, especially background plants and some floating plants for dappled light/shade.

• Driftwood or roots for structure.

TANK MATE: Good community fish with other similarly sized, non-aggressive species such as other tetras, rasboras, small barbs/danios, Corydoras, small peaceful catfish, and many dwarf cichlids or gouramis.

They may occasionally nip long-finned slow movers (e.g., some angelfish or bettas) if bored or kept in too small a group, so monitor or avoid those pairings.

FILTRATION: They come from slower-moving waters, so moderate to gentle flow is preferred.

MAINTENANCE: Ammonia and nitrite 0 ppm; nitrate kept low (ideally under 20–40 ppm). Weekly 20–30% water changes work well.

LIGHTING: Moderate lighting — brighter light can wash them out; subdued conditions bring out the “headlights.”

FEEDING: Base diet of quality tropical flakes or micro-pellets, supplemented regularly with frozen or live foods for best condition and colour:

• Brine shrimp, daphnia, bloodworms (occasional), cyclops, etc. Feed small amounts 1–2 times daily.