Invest In Youself And Retire Early!! Growing up we had a 10 gallon fish tank. My father was a wholesale Jewler (Bless his soul) and every week he would bring home a hand full of stones and put them in the bottom of the fish tank. No we did not have gravel we just had different stones like opals, emeralds, rubies, a few diamonds and so on. We had every possible stone sitting in the bottom of the fish tank and did not think twice about...... Similar Editorial : Retire in Mexico by Jason Keiller. | Source : Equity Group Investment