This is my third tank started with a 30 gallon that I had to tear down when we moved upgraded to a 75 gallon just got that restocked now waiting for growth and now I started a 21 gallon tank for seahorses and pipefish only been wet since 3/24/14 and am currently starting cycle adegeheg - 21 gallon seahorse pipefish tankdatapa6u - 21 gallon seahorse pipefish tanke5epesaj - 21 gallon seahorse pipefish tank