Fish Chasing

Hey guys I'm new to this forum. I've recently set up a tropical aquarium and the tank has cycled a couple of times. I've added 2 guppies (both male) and one of them keeps chasing the other constantly and will not leave him alone. I don't think that he's a gay fish so any other suggestions?

Thanks.

P.S. I've attached a picture, sorry the quality is poor because it was taken with a phone.

That is normal for male guppies. It is better to keep either more males (so maybe 5+) or keep two females per male (which can result in population explosion).

What do you mean, when you say you have cycled the filter a couple of times? Did you do two full cycles, letting it die in between?

either that or he did one full cycle then had a mini cycle shortly afterwards.

^ What she said .