I have a 3 gal pico tank, I keep things very very simple. I run a tiny hob filter deco type on my tank, heater, moon light, 9" coralife 9 watt 10,000k and 9 watt true actinic fixture. No sumps or powerheads.
I have a sand bed, Florida Ricordeas, Sun Coral, Green Star Polyps, Button Polyps tiny feather duster, Cleaner Shrimp, 2 snails, 1 hermit crab, 1 pom pom crab (cool critter) and this week will add a tiny Yellow Clown Goby.
This tank is over 1 year running, things are from my 10 gal that I started out with 5 years ago and downsized to this 3 gal to keep few things I really liked.
I do weekly water changes 8 cups of water comes out of this tank each week with new water in its place. I do daily top ups. I do feedings for the suncoral 3 times a week and careful to not over feed, any extra the shrimp has a hay day with.
Love this little tank but they do need attention. My best advice is to keep it simple with regular water changes.


