filtration

Question 1

purpose of filters

Answer 1

remove organic particles (incl. fish waste)

Question 2

types of filters

Answer 2

• mechanical
• biological
• chemical

Question 3

mechanical filters

Answer 3

• draw water through a sponge and expel it back into the tank
• debris is trapped in the sponge
• sponge is cleaned regularly

Question 4

biological filters

Answer 4

• 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

Question 5

chemical filters

Answer 5

• active control and change of specific water characteristics
• activated carbon can be added to the filter to remove impurities (e.e. chlorine)

Question 6

filter placements

Answer 6

• internal filter
• external filter
• sump filter
• undergravel filter
• protein skimmer