02-17-2010, 09:23 PM
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Freshwater with plants and saltwater are two different animals. However, becoming familiar with water testing and tank care in general with fresh water can set the stage for saltwater. Although sw does require a different approach. Goldfish
are cold water fish. They don't necessarily need a heater as long as the room is not too cold.
Tropical fish do need a heater and the the two, Goldfish
and tropicals, should never be kept together in the same tank.
How big are these Goldfish
? If they aren't huge and they aren't the kind that will get really big you may find it better to get them a 10 gallon and use the 29 for tropicals and live plants.