I have some questions on how to increase the oxygen level of your tank.
1) Do you really need an air pump/aerator? How do you compare water flow and bubbles?
2) Will the pure water flow without any surface agitation will provide enough oxygen? let's say, i have 2 canister filter with their outlets are both below the water level.
3) Do goldfish really need aerators? If yes, why? what's their difference to other fishes that they need aerators to survive?
1) Do you really need an air pump/aerator? How do you compare water flow and bubbles?
2) Will the pure water flow without any surface agitation will provide enough oxygen? let's say, i have 2 canister filter with their outlets are both below the water level.
3) Do goldfish really need aerators? If yes, why? what's their difference to other fishes that they need aerators to survive?