The Goliath Tigerfish, Hydrocynus goliath, is a ferocious predatory fish native to the Congo River Basin in Africa. It can grow up to 1.5 meters long and has be known to prey on small crocodiles and tearing large catfish into pieces! It occasionally attacks human since it is able to sense low frequency vibration in the water. It prefers to hunt in fast flowing water where smaller fish struggle to swim. Its massive teeth perfectly slide into distinct patches along its jaw. The Goliath Tigerfish is very rarely kept in any sort of aquarium although I did manage to spot a few at the Singapore River Safari the other day! See video below 🙂
The Pictus Catfish, Pimelodus Pictus, is a small species of catfish with extreme long barbels. The barbels can even reach to the caudal fin! Pictus Catfish are active bottom feeders that are usually most active at night. They inhabit the Amazon and Orinoco river basins and are common in the aquarium trade. In captivity they are omnivorous and eat vegetables, blood worms and insects among others. They are relatively peaceful fish and can be kept with other fish of similar size. Larger Pictus Catfish, however, will have a go at smaller fish (small tetra’s for example). Pictus Catfish are non-territorial so a shoal of 5 or more will make this species of catfish feel more at home. Furthermore, it is important to provide plenty of plants, rock, caves and driftwood in soft water. A dimly lit aquarium encourages the fish to be more active.
The Uara Cichlid, uaru amphiacanthoides, is a large species of cichlid native to South America in Northern Brazil and parts of Guyana that can grown up to 30 centimeters in length. It inhabits clear water tributaries, particularly around submerged branches and tree roots. Uara Cichlids can be recognized by their large eyes and distinguishing large spot on the body. In the aquarium it is a surprisingly peaceful fish considering its size and the aggressive behavior of most other cichlid species. It can be housed together with tetras, angels and species of characins. Uara Cichlids do need be housed in large tanks of about two meters in length. These fish can be fed frozen foods such as blood worms or brine shrimp, but will also happily eat vegetables such as lettuce, peas and spinach. Dried foods will also be gladly accepted. Juveniles often feed on the slime coat of their parents, similar to what Discus do.
Spent several days in the awesome Norwegian fjords with hundreds of waterfalls and peaceful surroundings. The magnificent scenery was shaped by past glaciers that have eroded the rock to form steep U-shaped valleys. When the glaciers retreated, some of the valleys became filled by the ocean, creating the sublime fjords of Norway. Some of the fjords are over 1300 meters deep! Thousands of waterfalls dot this pristine and rugged landscape making it a heaven for outdoor sports such as hiking, skiing and fishing. The train ride from Dombås to Åndalsnes was one of the most scenic train rides I have ever experienced. Particularly towards the end when the train descends to sea level towards the foot of the fjord at Åndalsnes. The nearby Trollstigen and Trollveggen and are the two main highlights of the region. Trollstigen is a 20km breathtaking zigzagging road that crawls up over a mountain pass crossing many waterfalls along the way. Tourists from all over the world come to Trollstigen during the summer to witness it for themselves. Trollveggen is in the adjacent valley and is Europe’s highest vertical cliff at over 1000 meters high. At the top of the of the cliff several sharp rocks can be seen which are referred to as the “trolls teeth”:P. Base jumping was popular here, but after several fatal accidents this has now been banned.
Romsdalseggen is a 10km hike that is definitely worth doing. From Åndalsnes, take a bus to the other side of the nearby mountain and walk the entire path back to Åndalsnes. It takes approximately 6 to 8 hours and passes through pristine landscape and very steep mountain cliffs. At some point the cliff almost go vertically down left and right of the path. You should not have fear of heights when attempting this walk!
Norway is one of the most expensive countries in the world, so in order to save a bit of money you can opt to camp in the many campgrounds for about 14 euro’s for two persons and make use of the facilities. We stayed at the Åndalsnes camping ground which was a pleasant place to stay 🙂
The Blackline Penguinfish, Thayeria boehlkei, also known as the hockey-stick tetra is a species of tetra native to the upper Amazon River basin in Peru and Araguaia River in Brazil. It has a distinguishing black line across its body which hooks downwards at its tail. It is highly recommended to cover the aquarium as these small fish have been seen jumping 2 meters out of the aquarium! Keep this fish in schools of at least 6 individuals (preferably more). The blackline penguinfish does not grow very large (max 7 centimeters long), so one does not need a very large aquarium to house a school of these fish. These fish are not too fussy concerning water parameters as long as the tank is cleaned periodically. This is a very peaceful fish excellent for a community tank. Goes well with other species of schooling tetra’s 🙂
The Wels catfish, Silurus glanis, is one of the largest fresh water fish in the world. Accurate measurements over the last couple of decades have shown several specimens of over two metres in length, the longest and heaviest being 2.78m (144kg). It’s a not the most attractive fish you will ever see as it has a long snake-like body, with slimy skin and a huge mouth. Using its long barbels, it tracks its prey by hearing and smelling. The eyesight of a Wels catfish is fairly poor, but it enjoys a tapetum lucidum which gives it reasonable vision at night. They eat insects, crustaceans and other fish. The larger ones go after small mammals and aquatic birds. It is rarely kept in the aquarium due to its sheer size.
This giant fish has been introduced in several European rivers, including the Seine and Po rivers in France and Italy respectively. In some areas, they are known to lunge out of the water to grab pigeons on land. Check youtube for video’s on this! Also the 6th season “cities” of the BBC’s Planet Earth II series spends time covering this phenomena.
Photo from the Watershed Council Petoskey