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46 results for “one-third change”

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How do you keep baby guppies alive?

Separate fry from adults, feed infusoria or brine shrimp after a few days, and do regular partial water changes.

Q&A 📅 August 6, 2026
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Double-banded Dwarf Cichlid

The double-banded dwarf cichlid was first found in 1906; in the wild it lives among layers of fallen leaves in the rainforest, so keep it with black-water treatment. It is fairly easy to keep, needing only stable water and temperature.

Breeds 📅 August 5, 2026
Rosy Barb

Rosy Barb

The rosy barb is native to India. In the aquarium it reaches 5 to 7 cm, but in the wild it can grow to 14 to 15 cm. During breeding it shows a striking rosy-red nuptial coloration.

Breeds 📅 August 5, 2026
Fuzhou Ranchu Goldfish

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.

Breeds 📅 August 5, 2026
Spotted Rasbora

Spotted Rasbora

The Spotted Rasbora (Rasbora maculata) is a small, peaceful, omnivorous fish named for the large round black spot on its orange-red body. Best kept in soft acidic water, males show vivid red-black fins while females are paler. It reaches about 2.5 cm.

Breeds 📅 August 5, 2026
Toadfish

Toadfish

The toadfish shares the same body shape as the lionfish, with an enormous head that can account for up to one-third of its total body length. Also known as the freshwater lionfish, this species is remarkable for its ability to change body coloration to match its surroundings.

Breeds 📅 August 5, 2026
Australian Spotted Arowana

Australian Spotted Arowana

The Australian spotted arowana (Scleropages leichardti) — also called the spotted barramundi or northern saratoga — is a large, nocturnal, fiercely aggressive arowana from eastern and northern Australia. A carnivorous tank boss that needs a big aquarium, soft acidic-to-neutral water, and careful, varied feeding.

Breeds 📅 August 4, 2026
Red-eyed Tree Frog

Red-eyed Tree Frog

The iconic big-eyed, green-and-orange hylid of Central American rainforests - fully nocturnal and a live-food specialist. An amphibian, not a reptile.

Breeds 📅 August 4, 2026
Pan’s Box Turtle

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.

Breeds 📅 August 4, 2026
Burmese Black Turtle

Burmese Black Turtle

The Burmese Black Turtle (Melanochelys trijuga indopeninsularis) is one of the seven subspecies of the Indian black turtle (three-keeled turtle). Common in Chinese pet markets — almost all sourced from wild capture — it is inexpensive but plain-looking, so it is kept in modest numbers.

Breeds 📅 August 4, 2026