There are 2 bombs here, 1 on the lower left and 1 in the chain. Doom bubbles on chain and upper left and a row of black bubbles above the bottom chain. There is a virus bubble on the left beside top bomb and also crystal bubbles. 2 chains each with 1 lock.
Work through to the lock avoiding left bomb until the chain is open. Once chain is open tackle the left side and bomb before the virus comes too far down. Make a gap on the left of the black bubbles so the virus cannot attach itself. Clear your way around the black bubbles next so you can drop them ( try to avoid setting off the next bomb on the left ) !!
Once you have dropped the middle you will see the ceiling and work to open the next chain. Try to collect green spiders before dropping the ceiling to boost your score.
Upper video walk through with no Charms and 3 Magic Potions, the video is uploaded to the Youtube Channel BubbleWitchSaga, subscribe to the channel to get fresh videos!