Quote Originally Posted by Sidius View Post
I did do some reading up before purchasing this little guy as it is my first pixie, but may I ask how you can tell it is a male? I am in no way disappointed it is a giant, however not thinking the 30g I bought for him as an adult is going to cut it now lol....guess I need to see if the lps still has any 75g tanks for $75. Thank you both for your input.
Head size and shape help determine sex.

30 gallons is perfectly fine for an adult male. Most people keep them in 20 gal long tanks.