Cardinal Tetra

Complete Guide to South American Aquariums: Breeding and Care of Neon Tetras and Corydoras

This guide explains how to build a South American aquarium centered on Neon Tetras and Corydoras. It covers recreating a blackwater environment, managing low pH and soft water, breeding Neon Tetras in schools, and raising Corydoras fry from spawning—all with practical, hands-on approaches.

Green Neon Tetra Care Guide | Differences from Neon Tetras, Water Quality, and the Beauty of Schooling

A detailed guide to caring for the smaller and more beautiful green neon tetra (Paracheirodon simulans). Covers the differences between green neon tetras, neon tetras, and cardinal tetras, how to create optimal weakly acidic soft water, tank layouts that showcase schooling behavior, and breeding basics—a complete guide to enjoying green neon tetras.

Complete Guide to Keeping Congo Tetras | Water Quality Management and Tank Mates for These Shimmering Rainbow-Colored Large Characins

The Congo Tetra is a large, beautiful characin from the Congo River. As a schooling fish with iridescent scales that shimmer in rainbow colors, we explain the secrets to bringing out its true beauty through soft, slightly acidic water quality management and careful selection of compatible tank mates.

Rummy Nose Tetra Care Guide | Water Quality Management and Schooling Techniques for These Beautiful Red-Headed Schooling Fish

A beginner's guide to caring for Rummy Nose Tetras with their striking red heads and black-and-white striped tail fins. Learn the number of fish, tank size, water quality management needed to showcase beautiful schooling, plus detailed methods for checking body color as a health indicator.