71 liters is almost 19 gallons and the rule with tropical fish is one inch of fish per a gallon of water at there adult size so it would be different for every fish you got like if the fish adult size is 2 inches that you could have about 10 of that fish in your tank.
Tropical and brackish are not mutually exclusive. Tropical means warm, and brackish means somewhat salty. Many brackish fish ARE tropical, and many tropical fish are brackish. You can keep tropical brackish fish with other tropical brackish fish, if they have the same temperment and will not harm or eat eachother. You can keep some brackish fish with some freshwater tropicals, and similarly you can keep some brackish fish with some marine tropicals. There are no wide open set of principles for brackish fish compatability beyond those that I have just illustrated.
Goldfish and such, about 4-6 Tropical Small like cardinals then about 8
depends on the size of the fish, and the length/width of your tank.. the maximum inches of total fish you can get for a 29 (110 liter) tank is usually 20 inches fish. absolute maximum is 29 inches. hope this helps.
72 legs A tropical fish has 72 legs
There are many freshwater tropical fish. In fact most of the tropical fish kept by aquarists are freshwater and they can not survive in either cold water or marine (salt) water. In most cases the marine species are much more difficult to keep and much more expensive to set up for.
7....But you should keep an good watch on them.
The number of fish that can be kept in a 200 liter tank depends on the size and species of the fish. As a general guideline, you could keep about 15-20 small fish or 5-10 medium-sized fish in a 200 liter tank. It's important to consider factors like water quality, filtration, and the specific needs of the fish when determining stocking levels.
There are many tropical fish on the link i posted that should help if you click on the name you will also get a picture of what the fish looks like. Hope i could help.
it depens on the fish... lol
There are many species of "Tropical Coral Reef Fish" that are commonly called "Butterfly Fish"
Thousands.
There are shark and tropical fish galore, but the Mahi mahi is the game fish of choice.