| Re: Plenum with water return below the sand
A closed loop is closed circulation system. Basically the water is sucked out of the tank and returned directly to the tank in a different location without going through a sump.
__________________
110 gallon acrylic
1 Yellow Tang, 1 Blue Tang, 2 Eng Gobies, 1 Six Line Wrasse, 1 Tomato Clown, 1 Lion fish, 1 Huma Trigger
RBTA, Approx. 10 snails
Red Monti, Purple Rim Monti, Leathers, Elegence, Yellow Polyps, various Zoa's, FrogSpawn, Ricordias, Greenbirdsnest, Pink Milli, Blue Milli, Bonzai, unknown Acropora's, Purple Digi, GSP, Bubble Coral, Staghorn, Slimer |