I have been trying to get a decent pic of this male guppy, without much success.

I am wondering about his "anal" fin.

It looks totally different to the other male guppy I have.

It is long and flowing, and almost reaches the back of his tail....haven't seen another guppy like this so far, and was wondering if this Anal fin is different from the gonopodium (hoping I got that correct LOL), or is it the same thing.....if so would this make him sterile?

He is a really pretty colour, looks more yellow during the day, and more blue at night, he has a pattern on his body aswell.

You will often find this in guppies that have been bred for increased colour or finnage. Invariably, as the finnage increases, so does the gonopodium, and often it is so long that the males become useless for breeding.

Thanks for that, I thought that might have been the case :-?

ye phillz i used to get normal male to females with this longfin but then i found that it was actually a deformity i stopped as male cannot breed they are actually very common

cheers