Discus care guides

Care Guide

Discus Water Parameters & Tank Setup

A precision-focused guide to the water chemistry and tank configuration requirements for keeping Discus, covering the notoriously strict parameter ranges, RO water systems, temperature stability, and ongoing maintenance protocols.

Care Guide

Discus Fish Tank Size Guide

A practical guide to selecting the right tank size for Discus fish, covering minimum dimensions for groups of various sizes, breeding pair setups, grow-out tanks, the relationship between tank volume and water stability, and common sizing mistakes.

Care Guide

Discus Fish Tank Mates

A detailed compatibility guide for Discus fish covering the best tank mates, species to avoid, stocking ratios, the temperature constraint that limits compatibility, and how to build a harmonious Discus community tank.

Care Guide

Discus Fish Feeding Guide

A complete feeding protocol for Discus fish at every life stage, covering staple foods, frozen and live food supplementation, beefheart preparation, colour-enhancing nutrition, juvenile grow-out feeding, and the dietary mistakes that undermine Discus health.

Care Guide

How to Breed Discus Fish

A comprehensive Discus breeding guide covering pair selection and formation, breeding tank setup, spawning triggers, egg care, the unique parental mucus feeding stage, fry rearing, grow-out protocols, and troubleshooting common breeding failures.

Species Guide

Blue Diamond Discus (Symphysodon aequifasciatus)

Symphysodon aequifasciatus

The Blue Diamond Discus is a selectively bred colour morph of the common Discus (Symphysodon aequifasciatus), prized for its solid, luminous cobalt-blue body free of the vertical stress bars typical of wild-type Discus. Widely considered the "king of the aquarium," Discus demand warm, pristine water, frequent feeding, and a calm social environment. This guide covers every element of Blue Diamond Discus husbandry — water chemistry, tank design, diet protocols, breeding, and disease prevention — drawing on The Fish Collection's decades of experience sourcing and maintaining show-quality Discus.

Species Guide

Discus Fish (Symphysodon aequifasciatus)

Symphysodon aequifasciatus

The Discus (Symphysodon aequifasciatus) is widely regarded as the king of the freshwater aquarium hobby — a laterally compressed South American cichlid prized for its disc-shaped body, vivid colour morphs, and complex social behaviour. Native to the floodplain lakes and calm tributaries of the Amazon basin, Discus demand warm, soft, acidic water and impeccable husbandry. This comprehensive guide draws on The Fish Collection's decade-plus experience importing and conditioning wild-caught and captive-bred Discus to deliver practical, expert-level care advice for beginners and advanced keepers alike.