Guys can I help dispel some myths about differences in the guppy female and the Endler's female . I see a lot of people claiming that their female Endler' s have a coloured tail and dorsal fin, This is not true, The true Endler female has no colour in these regions. A so called Endler female with colour has had some sort of hybridation occurred in it's linage, A lot of people buy Endlers from some breeders when the fish are young, after a month or so the female starts showing colour on its tail and dorsal fins, naturally the person thinks the fish is a real Endler because the guy who sold it to them said so. when in fact it's classification is a Hybrid "K" Class.
However there are some subtle differences between the two, I must admit it is difficult when the fish are young (Please refer to the pictures below)
Guys I am not down on hybrids, however i feel sorry for people who think they have one thing but have another, There are many Endler Types out there and few true Endlers
do your checks before you buy