I have a 20 gallon Nano tank that has been running for over 3 years. It has been taken down twice due to deployments and moves but is soon to be retired and upgraded to a new to me 75 gallon system I will be building!! I have had a 55 gallon reef tank but crashed on a deployment so my upgrade to a 75 is a very exciting adventure to come!
The current setup is a 20 gallon tall aquarium with a 10 gallon refugium shoehorned into the bottom of the stand length wise. I have a cheap aquatraders metal halide setup that is working great form my needs, a hang on type overflow, going to my 10 gallon sump with a CPR Bak Pak skimmer and a Rio 3100 dialed down for my return. I have a Maxijet 1200 for a power head and flow is working out pretty well in the tank. the sump is divided into three sections. The intake area has a filter sock and the HOB skimmer, the middle is where my refugium is with live sand, rock rubble, and grape caulerpa algae for nutrient export.
Live stock:
clown fish
lawnmower blenny
Mandarin Goby
Sand sifting Starfish
turbo snail and conch snail
Hermit crabs
flower pot coral
eagle eye zonathid
acan
star polyp
galaxia
condy anemone
candy cane (green and pink)
Hammer coral
frog spawn
various mushrooms
