animal care |

animal care : "Gadgets for the tank
To heat or not to heat? Whether you will want to invest in a heater depends on where you live and what types of fish you have. Generally, goldfish and koi do not need a heater. But you will need a heater for any fish requiring water that is warmer than the natural room temperature. Heaters often fail, so invest in a heater of good quality and monitor the tank daily to avoid cooked or frozen fish.
An air pump is generally deemed a good thing: It helps avoid thermal layering, prevents film from forming on the top of the water (which inhibits the carbon dioxide/oxygen exchange), and it helps the good bacteria to grow. It is also a good idea to include foliage, rocks, or another type of cover. Although this really depends on the fish, most fish will strongly appreciate the chance to get out of sight.
You will need a filter for your tank as well, and a good one usually comprises the three types (biological, mechanical, chemical) available. At the very least, a biological filter is necessary as it helps break down the nitrites and ammonia into the more benign nitrates. All filters need to be cleaned regularly. "