TOP-TYPE FILTERING DEVICE AND WATER DISCHARGING DEVICE FOR FISH FOR ADMIRATION

摘要

PROBLEM TO BE SOLVED: To obtain a water purifier for a water tank capable of maintaining water environment necessary for fish for admiration to live for long hours without cleaning a filtering tank and exchanging water by specifically constituting so as to effectively decomposed dust and harmful matters. ;SOLUTION: A shupolex room 3 is installed at the bottom and internal part of the structure of the filtering tank arranged on the top of the water tank and in addition, a bottom board 4, a gravel room 5, a bottom board 6 and a gravel room 7 are successively arranged on it. Water before filtering is made to be flowed in from the room flow-in cylinder 2 of the shupolex room 3 to deposit the excreta and the remaining bait, etc., of fish in water with in the room 3 and then water is made to successively pass through the bottom board 4, the gravel room 5, the bottom board 6 and the gravel room 7 to process small dust and floating objects. In addition, at this time bacterial are made to live in the rooms 3, 4 and 7 in large quantities to decompose the excreta, the remaining bait, the small dust and floating objects, ammonia, nitrogen composed, etc., to accelerate the speed of filtering. At least water outputted to the top is discharged into the water tank with air bubbles through a flowing-out cylinder 9.;COPYRIGHT: (C)1997,JPO