Assertion: piranha's tank | /r/HasProperty | small
Facets:
value: relatively
type: DEGREE
Source sentences:
text: Baby piranha's can - temporarily - be housed in a relatively small tank (15-30 gallons or 60-120 liter, depending on the species and number of fish) to raise them to a certain length, but youngsters grow very fast (Pygocentrus piranha's in particular), and when they are about seven to nine months old they measure about 4-6" (10-15cm.) in length, and should be moved to a larger tank.
text: In an aquarium it can happen if they are not fed regularly enough or the tank is too small.