Discus Water Parameters, Diet and Tank Mates: A Complete Care Guide
Discus (Symphysodon) are demanding cichlids that need warm water of about 28 to 30 C,...
Fish Care & Health
Freshwater Aquarium Sharks: Species You Can Actually Keep
No true shark can be kept in a normal home aquarium, and the freshwater “sharks”...
Blue Mystery Snail Care: Tank Size, Diet and Breeding
Blue mystery snails (a colour morph of the apple snail sold as the mystery snail,...
What to Feed Aquarium Fish: Flakes, Pellets, Frozen and Live Food
Most aquarium fish do best on a good-quality flake, micro-pellet or sinking pellet matched to...
Koi Betta Fish: Colors, Genetics and Care
A koi betta is not a separate species or a hybrid with koi; it is...
Can Koi and Goldfish Live Together? Pond and Tank Rules
Koi and goldfish can live together in a large, well-filtered pond, but not in an...
Types of Koi Fish: Varieties, Colors and Patterns Explained
Koi (nishikigoi) are ornamental varieties of the common carp, Cyprinus carpio, sorted into more than...
Male vs Female Angelfish: How to Tell Them Apart
You cannot reliably tell a male angelfish from a female by body shape, fin length...
Altum Angelfish Care: Water, Tank Size and Diet
Altum angelfish (Pterophyllum altum) are demanding, mostly wild-caught South American cichlids that need a very...
Angelfish Tank Size: Minimum Gallons for One, a Pair and a Group
Sources vary on the minimum: retail-style guides commonly accept a 20-gallon high or a 29-gallon...
Angelfish Tank Mates: Compatible, Risky and Avoid Fish
The best angelfish tank mates are medium-sized, peaceful fish that cannot fit in an angelfish’s...
Aquarium Plants for Goldfish: Species That Survive Being Eaten
The aquarium plants that survive goldfish best are tough, bitter or firmly anchored species: anubias...