Hi. I recently set up several stock tanks and barrels outside and bought some Moscow guppies, plates and a few gold mollies to put in them. I also caught some Gambusia and other native/non natives in a local canal. They went into separate stock tanks. So far the mosquito population is way less. The guppies have given birth to MANY fry. I may be over run with purple moscows! Come fall I can send lots to anyone who is interested in them.