I moved into a house with a pond last christmas, we had a fantastic year of pondlife, lots of plants, frogs and newts. I have not done anything significant to the pond other than keep it tidy. After the cold spell i was devasted as were many others to find upwards of 200 bloated and dead frogs, which we cleared. Today after a week away and warm temperatures the pond is ver lively, but surrounding the pond are a couple of dozen dead frogs, with what seem like injuries, at varying distances from the pond -its horrible