07-23-2008, 09:42 PM
| || | Fantail goldfish like all other fancy strains can grow to 8 inches. Depending on how you took care of it, it could have grown by as much as 4-5 inches by now. A 20g is always the bare minimum for only one goldfish. Bear in mind, goldfish are coldwater species that produce heavy amounts of waste which means you need to maximize your filtration capacity and water changes.
Originally Posted by candapandaa
Also, is 5 gallons REALLY too small for my goldfish? It's not a big goldfish...it's no more than 2 inches long, and over the 4 months i've had him, he hasn't grown at all. If they can be kept in bowls, why not in 5 gallon tanks? I dont understand...
If I were you, keep a betta in the 5g and get another tank at 20-30g if you still have plans to keep goldfish. Keep the temperature steady at 74 degrees Fahrenheit for goldfish whereas 80 degrees Fahrenheit for bettas. If you are located in USA, then look on Craiglist for tank bargains.
Feed your goldfish once or twice a day and fast it a day per week. Do water changes 3 times a week and regularly monitor your water parameters.