My older son has gotten in keeping fish over the last year. He kept his first fish, a betta named "Ridely" alive for 6 months, changing the water religiously. So now he has a 20 gallon aquarium with mollys and plattys--and the latter keep having babies--and guess who gets stuck testing the water--the guy who knows how to test pools! I was gonna name the fish "Maki", "Nigiri", "Sashimi" and "Sushi" but he really did NOT appreciate that. But with "Mercury" getting pregnant alot, 4 fish is now 8 fish....