Which of the Aqua One models? They have a variety of tanks in many different volumes. I have two 30 litre ones and a 75 litre one.
guppys are tropical fish. they require a heater, and 1 gallon is to small for a heater
7....But you should keep an good watch on them.
Many types of fish and a few types of birds are aqua.
72 legs A tropical fish has 72 legs
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.
Assuming you have proper filtration, you should abide by the one inch of fish per five gallons of water. This would mean a total of 13 total inches of fish.
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.
Depends on the size of the fish, but no more than a total of 17 inches of fish. 1 inch of fish per gallon of water.
id say 15 fish
4 or more or less. Depends on the size of the fish. Usually 1 fish per 1/2 gallon.
The rule of thumb is usually a gallon per fish, so six gallons would be good. If the fish are on the large side (like a goldfish), then a seven gallon tank would be ideal.
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.