hey if you buy a young fish, one that is not it’s adult size yet, it is extremely important to do frequent water changes, even if the water quality would normally be fine. fish that are still growing release a growth-inhibiting hormone into the water. in the wild this hormone would hardly affect the fish, given the space it has available, but in a tank this hormone accumulates and stunts the fish’s growth greatly. frequent water changes remove the hormone and ensure that the fish will grow normally. if the fish’s growth were to be stunted it would develop deformities and it’s health would be compromised.
I am old, Peter. I am ever so much more than twenty. I grew up long ago.”
“You promised not to!”
“I couldn’t help it. I am a married woman, Peter.”
“No, you’re not.”
“Yes, and the little girl in the bed is my baby.”
“No, she’s not.