Right now my sump is an Elso sump 1000. I want to add a refugium and right now (for those with knowledge on what the sump looks like), I am using a very small chamber with some chaeto and live rock and a light. I do not want to use the ATO section of the sump for this, so I am left with buying something else and selling this one. My tank is an Elos 90 gallon (48x24).

Never did this before. Watched a ton of YouTube videos. Measured with my eyes only. From right to left...intake, fuge, bubble trap and return. Easy peezy!

