| 摘要 |
<p>PURPOSE: To provide an economical and practical water tank for feeding living fish which can prevent the water in the tank from discoloring and smelling foul to make it unnecessary to frequently exchange the water and wash the filtration tank. CONSTITUTION: This fish-feeding tank system is composed of a feeding tanks 1, an air-bubbling tank 2, a cleaning tank 3, and a sedimentation tank 4 where these tanks are connected in order in series, the cleaning tank and the bubbling tank are kept same at their water levels, and the level in the feeding tank is kept stepwise lower than their levels. In this system, the water is moved or circulated by the water circulation flow to exchange the upper water with the lower water in a plurality of the aerated water-generating tube 10 which are arranged in the feeding tanks and have an air-diffuser embedded, further through the conduit 11 connected to a plurality of these aerated water generators 10 and extended from the feeding tanks 1 to the cleaning tank 3 to make the optimal water flow for feeding the living fish.</p> |
