It is possible to keep a 5-gallon tank going.
However, this size falls under the "pico" reef category, and they are extremely difficult to keep.
Really, a 5-gallon is more of a flowerpot. Get flowers.
Im not going to make it a reef tho. I would put s pounds of sand. 5 pounds of live rock and a fish. Im trying to figure out what fish tho. Would this be hard?
If you are desperate to do this, you might be able to squeeze a 2'' goby in there.
But for a less cruel option, you could instead make a tank for invertebrates such as dwarf hermits, snails, zoanthid polyps, and the like.
-L.B.
Make sure that it is eating. Watchman gobies have a tendency to starve in the land of plenty.
Also, these animals require a reef environment and are happier with their natural symbionts, pistol shrimp.
Tanks as small as 5 gallons are for experts only. I repeat; EXPERTS ONLY.
Chances are, if you are asking if you can keep things in them, then you are not ready for it.
Get a bigger tank; it will save you and your livestock a lot of suffering.
-L.B.
If you are exremely set in a 5G pico you should go with a clown goby not a YW goby they will get 2 big imo. Or you could do a harlequin shrimp tank, That would be really cool
Originally Posted by Spitfire
Remember, experts only!
I'm speaking for the fish here, not for my self! :happyfish
I disagree you don't have to be an expert. Just make sure water quality stays good by not overfeeding or getting fish that are to big. Just do 1-2 Gallon water changes once a week and get a fusion protein skimmer that are made for the aquapods. Good Luck