Fish store said he had some Banded Severums that were around 2.5-3 inches long fairly cheap as well as some yellow gold severums that were 3-4 inches long for 14.99. My question is what color do the Banded Severums turn as they get older? He said they werent green they were banded but would turn a slight greenish color as they get older.. Kinda confusing..Any help?