Blue Bloon

The Blue Bloon is a type of Bloon. It is the second bloon you will encounter playing Bloons TD Battles. It is faster than a Red Bloon but slower than a Green Bloon. They come out of Green Bloons. Blue Bloons spawn Red Bloons when popped

Sending Blue Bloons
Sending Blue Bloons is quite easy. You can send groups of Blue Bloons and spaced Blue Bloons. Sending Blue Bloons is usually only to increase your Eco. Sometimes, Blue Bloons can get passed bad defenses. You can also send the camo and regen variants of the Blue Bloon. Camo Blue Bloons can get passed any defenses without camo detection. Regen Blues aren't that good as they can only regrow one layer.

Defending Blue Bloons
It is quite easy to defend Blue Bloons. Any tower with popping power will do. You might need to upgrade the tower depending which tower you use. Defending regen and camo Blue Bloons is also easy. All you need is a tower with camo detection. A Ninja Monkey will defend them just fine, as well as an upgraded Money Apprentice and more.

Summary

 * Blue Bloons are for increasing Eco
 * Blue Bloons spawn Red Bloons
 * Blue Bloons come out of Green Bloons