养鱼成功术12招(国外英文资料).docVIP

养鱼成功术12招(国外英文资料) A, the aquarium / wood In fact, keeping the vessel is not confined to the aquarium, as long as you can keep a container filled with water, few fish can be called fish, generally using a glass aquarium material is the most common to the breeding container, because the water demand of different glass thickness and strengthening and whether or not the difference, common aquarium small thickness in 3~5mm, a large aquarium thickness is about 5~12mm, a large aquarium is due to water quantity and water pressure considerations should be to strengthen the safe glass. Acrylic aquarium is a material light, safe and more elastic, in some other fancy fish (such as rectangular, cylindrical, bullet...... The acrylic material is adopted, but the acrylic itself is easy to produce atomization and is easy to scratch when cleaning, which affects its beauty. The volume of an aquarium is usually measured by a table, and a ruler is about 30 centimeters. The water tank is calculated (CM) length * width * height (CM) (CM) can be divided by 1000 liters of total water units; 4000 gallons of water will be divided by the total units (deduct of sand and water scenery made the volume of water, such as an external or bottom filter the water to join). Divided into skin, wooden plates and a variety of paint, the pattern is various, the price differences are distinguished in material and style, should be able to carry a water filled tank the total weight of priority in the purchase, most avoid with some beautiful but not enough to withstand the table or the bookcase placed aquarium. Two. Types of filtration systems In the process of culture, the water quality is caused by residual bait, biological metabolism and individual death... All of these will lead to the deterioration of water quality. With the breakthrough of fish culture technology, the design of the filtration system has been innovated, and can be roughly divided into: 1. bottom wave plate filtration: the bottom of fish tan