MOST mandarins do not survive in a tank that is smaller than 100 gallons with 1˝ of LR
per gallon (150 pounds). Even with a pod pile you will not be able to produce enough food for this fish. If it does eat frozen food, it still needs at least a 30 gallon tank to roam.
A mature tank for a mandarin is one that is about 7-8 months or longer after the cycle has ended and has enough LR
to allow the pod population to grow (no other competitors).