Welcome to gmacreef!
Whether you’re an absolute beginner or someone looking to set up your next tank, this site is designed to educate you. All the components of a reef tank like Sumps, Returns and Overflows all are all explained with clear language and helpful diagrams.
Overflows allow water to be collected from the surface of the tank which keeps the display water level constant at all times. Weirs and plumbing methods are covered in these posts.
Return pumps are the center of the life support system on a reef tank and should be installed properly in the sump. Info about selecting equipment and properly plumbing the line is in these posts.
Using a sump has many different benefits and can be set up many different ways. Info about both sump construction and best practices to follow is covered.