Predator Protection Upgrade

While my Styrofoam floats provide some protection from the neighborhood predators, they are not very attractive. I received a couple of nifty gifts for Christmas. These are three plastic floating rocks, one large and two medium. To round it out is the floating solar fountain. Since we are in the dead of winter, the sun hasn't gotten high enough in the sky to produce electricity. But we are hopeful it will work as advertised in the spring. I'm interested in how the frogs will react to the floating rocks when they awake from their winter sleep.