Celsius is a temperature scale where 0 C indicates the melting point of ice and 100 C indicates the steam point of water.Yup, it's the melting point of ice, not the freezing point of water.elsius is a temperature scale where 0 C indicates the melting point of ice and 100 C indicates the steam point of water.
Biological filters: Replace the carbon when the aquarium water turns cloudy, or at least once every two months. Chemical filters: Give the chemical filter a good cleaning out when it appears to be clogged, malfunctioning or working very slowly. More frequent cleanings may be needed if your fish is sick.
Washable electrostatic filters come in several standard sizes. Everyone agrees that you should change your HVAC filter on a regular basis, but not everyone agrees on the type of filter you should use. Next time you go shopping for a furnace (or AC) filter, here are a few things to keep in mind. These tips can save you a bundle and perhaps even prevent you from inadvertently damaging your HVAC equipment.