To cross Candy Crush Saga Level 3000 without using boosters, you can follow these detailed steps:

1. Understand the Level Layout:
– The level typically features a board with fish that need to be collected. The dispensers along the top of the board will drop stripes and wraps every time you make a move.

2. Focus on Combos:
– The best way to get combos is to make a match of three candies along the top row, just under the dispensers. This will give you a stripe and a wrap together, which you can then switch for the maximum number of fish.

3. Switch Combos Strategically:
– When switching the combos, aim to hit the most floats. There is an empty column down the middle without floats, so try to hit the floats on each side where there are the most.

4. Use the Top Row for Combos:
– Continuously match three candies in the top row to create stripe and wrap combinations. This will help you clear the board efficiently and collect as many fish as possible.

5. Manage Your Moves:
– Make strategic moves to ensure that you are always creating new combinations. Avoid making moves that do not contribute to your goal of collecting fish and clearing the board.

6. Pay Attention to Fish Spawners:
– Try to hit the fish spawners with your combos to maximize the number of fish collected. The fish spawners are crucial for achieving high scores and completing the level.

7. Monitor Your Progress:
– Keep track of how many fish you have collected and adjust your strategy accordingly. If you find that you are not collecting enough fish, try different combinations or focus on specific areas of the board.

8. Use Color Bombs Wisely (if available):
– If you have color bombs available, use them to clear licorice X’s or other obstacles that might be blocking your path to the fish spawners. This can help you clear the board more efficiently and increase your chances of completing the level.

By following these steps and maintaining a strategic mindset, you should be able to cross Candy Crush Saga Level 3000 without using boosters.