Could any fish live in a one gal reef?

[Tyler_Fishman]

My 1 gal reef tank is almost done cycling, I know that some invertebrate life could live comfortably in it, but what about fish?

 

[BenitaSolo]

Not sure that I would put any in there. I would not do it.

Without knowing anything about your system I would assume that there will be large swings of water chemistry.
Ive seen some pretty dang small yellow watchman gobies and clown gobies lately. These could be short term options.Especially if you have another tank already up and running.
I wouldn't do it.

 

[Maritimer]

There are some pretty tiny gobies out there ... Trimma cana, Discordipinna greisingeri, and Eviota nigriventris only grow about one inch long each ... but one gallon . . . man, I just don't know.

~Bruce

 

[eatbreakfast]

The space won't be the issue for some species, rather the chemistry and temperature. If you can keep those stable, the species mentioned above, as well as Panemic barnacle blenny could possibly work.

 

[keddre]

I say go for a school of Moorish idols

But in a serious note, maybe a shrimp hobby pair. Once they build a hole they rarely go far. This is assuming you have an adequate sand bed and can keep steady parameters

 

[Tyler_Fishman]

Yeah I heard about gobies, though Fish aren't my priority, it's soft corals, my main problem is tempature, as my tank tends to drop to 76 at night then rise to 82 in the day.

 

[Paul B]

Whale shark, but you have to keep his face in the water.

 

[ChiCity]

Yeah I heard about gobies, though Fish aren't my priority, it's soft corals, my main problem is tempature, as my tank tends to drop to 76 at night then rise to 82 in the day.

That's a bit of a swing, but most fish and zoas can deal with those temp swings.
If you're going to run a 1g tank, an ato is absolutely 100% necessary to stabilize salinity swings; because in a 1g tank the evaporation would be consequential.
A barnacle blenny, or 2, would be perfect!
As long as you do water changes of a cup (8oz) every other day, it should be smooth sailing...

 

[Tyler_Fishman]

Plastic wrap seems to have really helped me with evaporation, I have a line on the tank which indicates the water level, Granted I still loose very minute quantities every few days, I have a tetra 10 gal filter on it and an airstone aswell

 

[Jessi_reefer]

I had a 5 gallon and had a hard time keeping the parameters in line. It's such a small volume of water that any swing is a really big swing. You should definitely invest in an auto top off (I like the smart ATO and I think it's about $75). This helps since any evaporation makes big swings. And, it will seem like it evaporates quite quickly. The only fish I would even try are the nano gobies. There's a redline nano and a green line nano that are very tiny. Maybe some harlequin or pompom shrimps. But, if fish aren't your thing, don't risk it. It's hard to keep fish in such a small tank.