Do corals need a certain tank size?

[One Reefing Boi]

I know stability is the issue, but would a hammer care if it was in a 5g or a 5g?
I have a 5g pico I’m setting up and was thinking of either doing like 1 Euphyllia, or a GSP rock/back wall, or maybe an anemone.

would stock with like 1 or 2 tangs (this is a joke) but would like to have 1 or 2 nano fish in there.
Assuming I take great care to keep everything stable, is there any coral/anemones I couldn’t keep in a tank that small?

 

[Billldg]

Corals themselves really don't care about the size of the tank. The bigger issue would be the stability of the parameters in a smaller tank. If you are willing to manage the parameters in a smaller tank, the quicker parameter swings and such thru water changes, then it can work. When it comes to smaller tanks I always recommend going thru @Katrina71 member tank threads. I feel she is one of the best at smaller tanks, in which I feel are harder to maintain, so much respect.

 

[AcroNem]

stability matters, size not really. Here's a 6" (.5gallon) cube I kept a while.

 

[f.christian]

I know stability is the issue, but would a hammer care if it was in a 5g or a 5g?
I have a 5g pico I’m setting up and was thinking of either doing like 1 Euphyllia, or a GSP rock/back wall, or maybe an anemone.

would stock with like 1 or 2 tangs (this is a joke) but would like to have 1 or 2 nano fish in there.
Assuming I take great care to keep everything stable, is there any coral/anemones I couldn’t keep in a tank that small?

honestly any coral can go into a small tank the only thing is like you said stability. but I have a 9g biocube and I put dragons breath in the display and some cheato algae behind the rocks. honestly I don't even need to touch the tank it takes care of itself with great growth rate and I have Duncans, zoas, mushrooms, leathers, GSP I don't have many hard corals so I couldn't say in that regard but its worked for me and looks great

 

[Katrina71]

Corals themselves really don't care about the size of the tank. The bigger issue would be the stability of the parameters in a smaller tank. If you are willing to manage the parameters in a smaller tank, the quicker parameter swings and such thru water changes, then it can work. When it comes to smaller tanks I always recommend going thru @Katrina71 member tank threads. I feel she is one of the best at smaller tanks, in which I feel are harder to maintain, so much respect.

Wow. Thanks. I agree, in this case, size doesn't matter as much as stability and water changes.