Tropical refers to the temperature of the water; aquariums can be tropical and hard, or tropical and soft water. Water hardness is simply a measure of the mineral content of the water.
tropical fish like hard water, with some softness to it, it keeps theyr fins from bunching up and makes them able to swim faster. ( be sure to use a filter to keep the water running)
Tropical simply refers to fish that are from the tropics, and does not denote an entire, uniform group. There are many types of tropical fish, and they all come from areas of the world which are hot, but that don't have similar water characteristics.In other words, some fish need hard water, and some fish need soft water. For example, most of the tropical fish from South America prefer soft water. In contrast, fish from the African Rift Valley Lakes, also a tropical area, require very hard water.no way hozay
Actually, different species of tropical fish require different levels of kH/gH. Some require soft water, and some hard water. So make sure to research the species before you acquire it!
no tropical fish need warm water
no tropical water means the fish are found in tropical regions which means the water is warm - 21-28 Cece's
Subtropical water is cold water that is not tropical.
These spectacular fish (Pseudanthias species) are tropical marine (salt water) fish.
Some tropical fish come from hardwater areas (African Rift Lakes Cichlids for example), whereas other fish come from soft water areas (Amazon River Basin fish - most tetras, angelfish, a lot of other fish). Many others come from intermediately hard water areas, for example barbs and rainbows. The best solution in a community tank is to go for moderate hardness, as it will best accomodate most species.
"Tropical" simply means the aquarium is kept above 60F. "Marine" simply means the water in the aquarium has had sea salt added to make the water into sea water. Therefore it is possible to have aquaria that are "Tropical", or "Marine", and also "Tropical marine".
There are a couple of ways to define what are tropical waters. The first is:- By geographical position, any water that lies between the Tropic of Cancer in the Northern Hemisphere and the Tropic of Capricorn in the Southern Hemisphere must be Tropical Waters. The other way to define Tropical Water is subjective and dependent on temperature. In my opinion tropical water is water that never goes below 65F.
Fresh Water
Subtropical water is cold water that is not tropical.