Few ecosystems on Earth bridge the gap between colossal river legends and delicate planted-aquarium favorites quite like the Amazon basin. The Amazon River Fish Species 2026 Advent Calendar turns that freshwater biodiversity into a 24-day December countdown for aquarists, anglers, and natural history collectors. Housed inside a rigid paperboard collector box titled “Lives in Amazon River,” the vintage field-guide cover artwork frames a submerged rainforest canopy where an Arowana, striped Angelfish, crimson Discus, and whiskered Catfish glide beside an “Amazon Wonders Brighter Days” wooden plaque.
From Arapaima River Giants to Planted-Tank Tetras
Opening the 24 individually numbered daily compartments reveals a complete field guide of 24 flat contour-cut acrylic fish ornaments, each printed with biological scale patterns and an integrated bottom nameplate flanked by green leaf sprigs. On the river-monster side of the roster, collectors uncover the crimson-scaled Arapaima, silver-red Arowana, yellow-barred Peacock Bass, red-bellied Piranha, deep-bodied Tambaqui and Pacu, spotted Electric Eel, white-spotted dark Freshwater Stingray, and long-whiskered Red-Tailed Catfish.

Balancing those apex predators are the tropical community species that anchor home aquascapes: royal red Discus, striated Turquoise Discus, vertical-striped Angelfish, Neon Tetra, Cardinal Tetra, Rummy Nose Tetra, Silver Dollar, and winged Hatchetfish. Bottom-dwelling and specialty tropical companions complete the 24-day set, including Banded Corydoras, Amazon Corydoras, white-spotted black Pleco, Bumblebee Catfish, Butterfly Cichlid, orange-and-black Clown Loach, and ocellated Knife Fish.

Because each ornament is laser-cut from smooth, lightweight clear acrylic with a pre-punched upper eyelet, the pieces hang cleanly from pine needles on metallic cords and let tree lights glow around their transparent borders. Once the holiday season concludes, the rigid full-wrap paperboard box stands upright on an aquarium cabinet or bookshelf to store all 24 labeled species charms safely between winters.

















