Puzzle #159: Capsules

This is a simple puzzle idea that can leave for really tricky puzzles. Most puzzles use similar techniques, except the way you employ them can make a puzzle far trickier. The grid size is a bit limited as the total number of cells has to be divisable by 5. But you can easily change certain sizes in nice ways to valid size. Leave out the center cell in a 9x9 grid, or the four corner squares in a 7x7 or 8x8 grid.
The last puzzle I post here was meant for a puzzle championship, but tested too hard, just like Tuesday's Ripple Effect puzzle. As this would be the first one I posted here, I added two extra smaller puzzles just to prepare people for the harder logic in the last puzzle. Both these smaller puzzles use a key part of the solving logic for the larger puzzle. Hopefully they help and you will enjoy all puzzles.

Rules for Capsules

Puzzle #1

 Puzzle #2

Puzzle #3