养鱼是我老爸的最大爱好,他对鱼儿的照料可是无微不至。不仅要给鱼儿充足合理的营养,还要为鱼儿供氧、晒太阳,最重要的还是每周一次的换水。换水是我最头疼、老爸最尴尬的事情。因为给鱼缸换水必须将塑料软管放入水中,然后用嘴吸管。如果用力稍大时,鱼缸里的水就会进入嘴中;当用力稍小时,水流不到最低点,也就不能换水了。不仅如此,还要将鱼缸里的鱼儿捞出来,真是费时、费事。因此,我将科技创新的目标锁定在——制作简易鱼缸换 Fish is my dad’s biggest hobby, his fish care but in every possible way. Not only to give fish sufficient and reasonable nutrition, but also for the fish oxygen, the sun, the most important thing is to change the water once a week. Change the water is my most headache, dad most embarrassing thing. Because changing the water to the aquarium plastic hose must be placed in the water, and then mouth pipette. If the force is slightly larger, the water in the aquarium will enter the mouth; when a little force, the water is less than the lowest point, it can not change the water. Not only that, but also the fish out of the fish tank, it is time-consuming and trouble. Therefore, I will be the focus of technological innovation in - making simple fish tank change