1
Q
purpose of filters
A
remove organic particles (incl. fish waste)
2
Q
types of filters
A
- mechanical
- biological
- chemical
3
Q
mechanical filters
A
- draw water through a sponge and expel it back into the tank
- debris is trapped in the sponge
- sponge is cleaned regularly
4
Q
biological filters
A
- similarly to mechanical filters
- additionally have a bacteria colony on a media such as gravel
- bacteria colony breaks down and converts toxic substances in the water
- bacteria media can only be cleaned with aquarium water to avoid killing the colony
5
Q
chemical filters
A
- active control and change of specific water characteristics
- activated carbon can be added to the filter to remove impurities (e.e. chlorine)
6
Q
filter placements
A
- internal filter
- external filter
- sump filter
- undergravel filter
- protein skimmer
