Just decided on SUMP/refugium for my monster 75g LED gro-light planted discus bullet tank -- sump will keep CO2 reactor, ATO and heater out of sight. Duh.
This sump will be outside on the patio, plumbed thru wall into living room. So my idea is to build it using a picnic cooler as the vessel, so outside temp won't pull aquarium temp.
Anyone want to help me with sump/refugium design? Sump/fuge will be physically below main tank, fed by drilled standpipe, return by powerhead I assume.

This sump will be outside on the patio, plumbed thru wall into living room. So my idea is to build it using a picnic cooler as the vessel, so outside temp won't pull aquarium temp.
Anyone want to help me with sump/refugium design? Sump/fuge will be physically below main tank, fed by drilled standpipe, return by powerhead I assume.
