Guppies, platies, swordtails and mollies can cross-breed. So, to maintain a pure breed, its probably best not to mix them together.

Also, different coloured parents will produce offsprings different from their parents. So, if you want to keep the colour pure,...

My red male and white female platies produced 50 babies (we counted one by one). Now I only have 6 left, all different variations.

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Einzwaitrai