We added three new faces (and fins) to our family this week with the addition of our son’s long-awaited little fish. This boy has been begging for pet fish for weeks, and with our 10-day vacation earlier this month and a super full summer we managed to put off the purchase for quite some time. But let me say, this child was patient and persistent! So when we finally had a free evening earlier this week, we made the leap splash back into fish ownership, even if on a small scale (no pun intended). We purchased a petite round tank from Wal-Mart with a fun color-changing light and small filter. We then…