Height 120cm OPEN BOTTOM TANK That is how you maintain an open bottom fish tank. Simple and easy. No need to remove rock, plant, fish etc etc. Siphon out the dirt and top up the same amount of water you removed. Just ten minutes and the job is done ! UPRIGHT NORMAL TANK Cleaning a normal upright tank with a similar height of 120cm is much more difficult. Removing dirt from the bottom is not easy unless the water level is reduced and rock is removed. Readhing out at this height is another problem. ALGAE IN AQUARIUM Like mould in our homes, algae in aquariums cannot be completely prevented or stopped from growing. Algae growth will occur naturally in any healty aquarium, no matter how well maintained it is. Once algae take root in an aquarium, they can grow very rapidly if the conditions are right. Like other plants, algae need light, water and nutrients to grow. . Since the aquarium is a body of water, you’ll have to control the other two factors — light and nutrients — in order to prevent an algae scourge. AMMONIA POISONING Ammonia poisoning can occur in a variety of circumstances. Sometime it happens in a newly setup tank, but may also occur in an established tank when too many new fish are added at one time. Failure of filters may also trigger this condition. It is crucial for the aquarist to know the causes and the effects of ammonia toxicity in order to provide swift remedy, since ammonia poisoning is one of the major killers of aquarium fish. In a properly cycled …