To breed goldfish, feed the parent fish a high-protein diet three times a day, change 20% of their water daily and keep the temperature around 70 degrees during the day and 50 degrees at night. Once the fish breed, you a... More »

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The Goldfish Tank explains that a female goldfish lays hundreds of eggs after mating with a male goldfish. This is also called spawning. However, goldfish are not easy to breed. A goldfish will rarely lay eggs in a home ... More »

Goldfish eggs hatch within 48 to 72 hours, and the fish may live as long as 15 to 25 years. Within a week, the young start to resemble goldfish more closely, although they don't develop mature goldfish coloration until t... More »

According to The Goldfish Tank, both goldfish should be fed tiny pinches of food for about a minute while it is being consumed, two to three times per day. In lower temperatures, goldfish eat less. More »

To care for a goldfish, house the fish in an appropriately sized tank filled with well-maintained and well-filtered water. Feed the pet a goldfish-formulated diet two to three times daily. More »

The most common cause of black spots on goldfish are trauma and irritation due to high ammonia levels in the water. High ammonia actually burns the scales, resulting in white patches. The black spots appear as the scales... More »

Goldfish fish only appear to be blowing bubbles as it opens its mouth to draw in water for oxygen absorption. Sometimes as the fish opens its mouth, air escapes and creates a pocket, which forms into a bubble and makes i... More »