Ok so yes I am TRYING to gure all this out. Reading some of the forums they are talking about sumps. Whe I look them up it kinda looks like a canister filter/pump what ever they are called. Are they the same?:help:
a sump is usually another tank but could be a tub or something under the tank. pump the water out of the tank down into it and then back into the tank. its basically a filter. most people put the heaters in there also. there are different ways to set it up like with a wet dry system bio balls sponges.
sump generally utilize gravity feed(over flows) they are usually wet/dry..meaning the water from the tank passes over the bio media which is in a chamber above the main tank in the sump..the water as it passes over the media is subjected to the bacteria in the nitrogen cycle..sumps are very effective at filtration ..make sure there is a screen, floss. sock ..something to act as the mechanical filter..the tray this usually sits in can also be used for carbon etc.
the sump uses a pump in the return side to pump the water back to the main tank.
The canister system is enclosed, drawing water thru tubing, thru the media and returning to the main tank. The sump does the same but is open to the air and provides several options such as growing plants.