But i have to disagree.
Green Mandarins are one of the most beautiful reef fish in the hobby! They are not affected by ick AKA white spot, which is a added bones!
1 Green Mandarin could be kept in a 25gal tank if the following steps are taken.
A- a 25gal tank
B- A 15gal sump (10gal refugium)
C- A good skimmer
D- If corals are wanted then suitable lighting.
E- 35 LBS of LR and 20 LBS of LS
F- Leave the tank to sit for around 6 weeks to let it cycle
G- Add a clown (or something small) to the tank and let it again sit for 2 weeks
H- Get a Mandarin that eats FROZEN'S! ask the LFS to prove it before you buy
If you can follow these step then yes you can have that darling mandarin at the LFS
