Ball Pond; I saw a couple of people ice skating in the center of the pond and the boat launch cove is safe based upon some holes that were cut. But the northeast corner where Ball Pond brook starts has been open or iced over with skim ice most of the winter. There is an up-welling of warmer bottom water that is pushed up the slope to the cove where the brook starts and that keeps that area open or unsafe.
The boat launch cove is shallow and sometimes late in the winter is hypoxic with no oxygen in the water so ice fishing is no good. The first slope into deeper water is at the mouth of the cove on a line from the private beach on the west side to a white house with pillars on the east side. Fish that slope out into deeper water for trout and some bass and perch. The trout will be suspended near alewife schools. There are usually herring balls all over this area.
Squantz Pond; Very dicey right now. I saw one fisherman last night using a shanty in the boat launch cove out past the sand bar into the deeper water. It appeared that the east shore, where the stream bed is located, may not be safe. It is a different color, indicating new black ice and no snow ice, so it is not safe and this guy was fishing right at the edge of it and if it was safe he would be on it since this is a good area. I saw him move twice so he was probably jigging. Squantz is very stingy in the winter especially after the draw-down due to compression factors which bring the herring balls closer to the strike zone of the walleye, bass, perch and trout. It is very easy for one of these predator fish to feed and with their lowered metabolism they don't get hungry very often.
Candlewood is very problematic with open water still in some areas up in New Fairfield. There are coves that could be fished but access would have to be through private properties and the water may be too shallow for a productive bite. But by the end of the month the New Fairfield cove off the beach and marina, which is currently iced over, may be safe and the gate to the marina is open so you can park in the beach parking lot and walk down to the boat docks and boat launch and get out on the ice there. This is a good perch area.
The northwest corner of the state probably has better options especially for panfish.