Guppy Care Guide

The adult home

Build around behavior, not just gallons

• Use a cycled aquarium with open swimming room, planted cover, and moderate filtration.
• Hardness is important: very soft water can cause chronic difficulty even when pH appears acceptable.
• Use a lid; guppies can jump.

Compatibility and nutrition

Make sure every fish can behave and eat normally

• Choose peaceful fish that share their preference for warmer, mineral-rich water.
• Avoid persistent fin nippers and large predators.
• Feed small omnivore foods with plant matter plus occasional frozen or live foods.

Compatibility lists are never guarantees. Observe the actual animals, provide visual barriers, and keep a safe alternate housing plan whenever territorial or predatory fish are involved.

Arrival and long-term care

Observe first; change conditions deliberately

1. Before arrival, cycle and test the aquarium, confirm temperature, and prepare a lid and species-appropriate cover.
2. On arrival, dim the lights, inspect the unopened bag, and follow the seller’s acclimation directions. Do not pour shipping water into the aquarium.
3. For the first week, keep the environment quiet, feed lightly after the fish settles, and record appetite, breathing, waste, and social behavior.

• Maintain consistent water changes; crowded livebearer colonies can accumulate waste quickly.
• Watch for clamped fins, shimmying, weight loss, and males relentlessly pursuing females.
• If keeping both sexes, use more females than males and provide dense cover.

Breeding overview

Breeding creates a responsibility for the offspring

Females give birth to live young and may store sperm for multiple broods. Fry survive readily in dense plants or a separate grow-out aquarium; avoid cramped breeder boxes for long periods.

Before attempting a spawn, prepare cycled grow-out space, suitable first foods, a separation plan, and responsible homes for juveniles. Do not rely on a community aquarium to provide safe or controlled breeding conditions.