Ruby Tetra 2-3cm the favoured environments are thought to be sluggish or almost still, and crowded with dense vegetation and an abundance of leaf litter. The water is very soft and acidic, and stained a tea colour from the tannins in the decaying leaves and wood. The home aquarium should be mature, with a dark substrate and background and with driftwood and plenty of plant cover – both rooted and floating – in order for these peaceful fish to feel secure. Filtration should be efficient, but water movement gentle. Ruby Tetras are gregarious but not tightly schooling, and are best maintained in groups of at least 10, and more than this wherever possible. Male fish tend to hold small territories and may bicker a little on occasion, but providing there is a good network of hiding places/visual barriers for them to retreat into if necessary, no real harm should ensue. Tankmates, if desired, must also be small and peaceful. If you need real photos instead of the stock photo, please feel free to reach out to us. We would be delighted to provide you with videos and pictures all fish sizes are approx
