I take a fancy to delta tail guppies,specially the blue ones.
I had an awesome neon blue delta and a HUGE leopard tail neon green female who made some nice bright neon blue babies for me. The male was well over 2 years old and died recently of dropsy and the female died in the middle of dropping at least 50 babies. I bought a new male delta tail who is solid royal blue from his mouth to his tail and I have some nice plans for him.