Quiz Answer Key and Fun Facts
1. This fish is known as being an effective insectivore in areas known for disease spread by mosquitoes. In fact many people who don't even own an aquarium know of it.
2. These suckers are well known by aquarists with algae ridden tanks, especially brown algae. They spend a considerable amount of time at the bottom of the tank and love wood.
3. Four of the barbels stem from the base on the upper lip. They have three vertical stripes - one across the head and the other two across the body. Some species are active at dusk, others are nocturnal and they are extremely difficult to sex.
4. These fish are used in 'fighting' contests in Thailand and can wrestle for up to an hour. The mouth can be used to steer and balance and they are excellent jumpers.
5. This disc-shaped Amazonian fish has two long ventral fins. It is striped and is very difficult to sex. It is one of the most easily recognizable fish by non-aquarium owners.
6. These fish are found in both fresh and saltwater. They have tooth-plates that are used to grind up one of their favorite meals - snails. They are also found as food items in some Japanese restaurants, and can be extremely toxic if not prepared properly.
7. This fish has an electric organ that allows it to transmit microvoltages. Its brain is exeptionally large in proportion to other fish and it is believed to be very intelligent.
8. One of the most colorful South American dwarf cichlids. The females get pink bellies when gravid and they usually spawn on a flat rock or a pit in the gravel. They prefer acidic water.
9. The male of this species is beautifully colored, while the female is bland. They are bubble-nest builders. The males do not get along, and frequently fight. They are also known to kill females that are unwilling to mate.
10. This is another popular fish which loves its swimming space. They are shoaling fish, very fast swimmers, and they are extremely peaceful. They will nip at algae, and are known for sifting through bottom-debris.
11. Many aquarist buy this cute little fish without knowing that it can turn into a monster at 12 inches (30 cm). They are known for their personality and love rearranging the aquarium decor. They are difficult to sex, eat almost everything, and are very territorial once mature.
12. The male gender of this fish has a large pointed fin-extension on its tail. They are live bearers and come in a multitude of colors.
13. This shoaling fish can live with little oxygen in the water and feeds on invertebrates and algae. The pigment of this fish is derived from the colors black, yellow, and orange.
14. This fish owns a labyrinth organ which allows it to breathe from the surface when subjected to an environment low in oxygen. It loves fruit.
15. This nocturnal fish stays at the surface, usually under leaves or wood, and waits for insects. They are fantastic jumpers, so you need a well enclosed aquarium. They have a number of 'spikes' that act as feelers for their pelvic region. The male can be distinguished by his concave anal fin.
16. These little fellas never stop. Known as one of the most hyperactive of all freshwater fish, they are shoaling fish, and prefer to spawn on a gravelly bottom. Adult females will often choose to mate with the same male many times.
17. This is one of the best known saltwater fishes in the world. It is famous for its symbiotic relationship with anemones in tropical reef systems.
18. This is another African dwarf cichlid commonly found in the Niger delta. This fish loves to breed and can do so without any help from the aquarist. They are excellent parents, and will often spawn in caves. They are also well known for their mating rituals.
19. These fish have a very depressed look to them. They are usually marine, but there are also freshwater inhabitants. They are known for their long tail and tendency to cover themselves in sand.
20. You can see right through this fish!
Source: Author BlueTooth
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