How Tropical Fish Differ From Regular Fish
Tropical fish are a wonderful addition to any aquarium but prior to purchasing a tropical fish it is important that you understand how tropical fish differ from regular fish. The first difference is that they require different aquarium conditions in order to thrive and grow. This means that some require salt water tanks, warmer water, aerators, and other plant and food accommodations. For many tropical fish, the biggest difference in needs is water temperature and salinity.
Many tropical fish are from salt water areas which means that their tank salinity needs to mimic that of their natural habitat as closely as possible in order for them to thrive and live. Though they can survive for a time in fresh water tanks, they fare well in salt water tanks and thrive there. Another thing that is important in water conditions is temperature. With common fish like gold fish or mollies, there is not a great need to keep the water warmer or colder as these are common fish that tend to thrive well in many different environments. With tropical fish it is important that you give them warmer water as they are susceptible to cold and excessive heat.
Still another difference is what sort of food they need in order to thrive and sustain. With typical fish there is little need to make sure that food is specially formulated for tropical fish. Because tropical fish reside naturally where they do, their food requirements differ greatly from those of a common fish. They need different nutrients, are able to process food differently, and as such they need specially formulated foods to keep their color and health in good repair.
The last thing to understand is that tropical fish are generally a bit more aggressive than typical fish. This means that fish like betas, cichlids, angel fish, parrot fish, and other breeds need to be monitored closely when they are placed in their environments to make sure that the different breeds present cohabitate well.

