Sump?

[madgap]

I keep seeing the word 'sump' appear all over. What is it and is it worth having with a 400 ltr tank?

 

[jayjay]

Sump-

A water reservoir (tank) below a tank (usually a marine aquarium) through which water is circulated by means of gravity and a pump. The sump can be used to house filters, heaters, and other equipment to keep them out of sight. In addition, it increases the total water volume of the aquarium system and thus helps to stabilize it. Some maintenance tasks can be performed in the sump, reducing the need to disturb the main tank and its inhabitants.

 

[jarcher1390]

I keep seeing the word 'sump' appear all over. What is it and is it worth having with a 400 ltr tank?

if done right sumps can be really great and beneficial but your glass may need a drilling to add the pipe works for this, it may be a lot easier to get an external filter