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77 results for “dissolved oxygen”
Red and White Bubble-eye
The Red and White Bubble-eye is a variety of goldfish. While bubble-eye goldfish come in many rich colors, the red-and-white form is considered the finest. Like other goldfish, it is easy to keep, needing only attention to feeding and environment.
Flower Ranchu
The Flower Ranchu is a variety of goldfish. Because the Ranchu belongs to the egg-shaped, tiger-head goldfish group, the Flower Ranchu is one of the more distinctive goldfish varieties. Its most striking feature is a well-developed head growth, which is the key to its appeal.
Fuzhou Ranchu Goldfish
Fuzhou Ranchu is a branch of the egg-shaped goldfish distinguished by its well-developed head growth. Originally introduced from Japan, its unique form has made it one of the most popular goldfish varieties today.
Red Goose-Head Goldfish with Narial Bouquets
The Red Goose-Head Goldfish with Narial Bouquets is a recently developed goldfish variety with a red body and a head growth limited to the top, plus nasal pom-poms. The red-pompom form is especially popular. Eurythermal and easy to keep, it tolerates 0-38°C but not sudden temperature swings.
Black Bubble Eye Goldfish with Dorsal Fin
The Black Bubble Eye Goldfish with Dorsal Fin is an all-black variety of bubble-eye goldfish that first appeared around 1982, prized when its color is as deep as ink. Unlike tailless bubble eyes, it retains a normal dorsal fin. Its fluid-filled eye sacs are delicate and require careful handling and stable water conditions.
Australian Lungfish
The Australian lungfish (Neoceratodus forsteri), also called the Queensland lungfish, is the largest of the living lungfishes and a true 'living fossil' that breathes with both gills and a lung. Native to the rivers of Queensland, Australia, it is a protected species and not part of the ornamental aquarium trade.
Pan’s Box Turtle
Pan's Box Turtle (Cuora pani) is a small, China-endemic box turtle and a Class II nationally protected species. Rare in the wild and in trade — individual animals can fetch tens of thousands of yuan — it is a prized but legally restricted species that should only be kept where explicitly permitted.
Siamese Fighting Fish (Betta splendens)
The Siamese fighting fish (Betta splendens), native to Thailand, is one of the easier ornamental fish to keep, but two adult males will fight on sight—never keep more than one mature male per tank. Its vivid form and color make it a favorite among aquarists.
Golden Arowana
The Golden Arowana is an ancient, gold-scaled Asian arowana kept as a feng-shui 'underwater overlord.' Fiercely territorial and best kept alone in a covered tank at 28°C, it lives 10–20 years; slow growth builds the densest, brightest gold sheen, fed on small fish and shrimp rather than insects.
Black Arowana
The Black Arowana is a South American freshwater predator from the Amazon and Guyana, born with two long barbels and flowing fins. Aggressive and best kept alone in a covered tank over 120 cm, it needs 24–28°C soft water and a meaty diet of live foods. Watch for white spot and tail rot.