I've heard a lot of people say that having two tidally locked planets close together would have adverse affects on both planets. I have two tidally locked planets at a distance of 16,550 miles apart. Or, about 26635 kilometers apart. Both planets are about earth's size, with a similar composition, but one has about 85% and the other 60% of the surface covered in water. (Including polar ice caps.)
How would this affect the conditions on each planet? I believe I've heard that there would be more tectonic activity, and there wouldn't really be tides, and that the water would be pulled towards the opposite planet. How much truth is there to these statements, and what other effects can I expect?