How can you guys tell the different between a water kok and the others which i dont what is it call?

The other is called a hard kok because it's harder.

how can you feel it tho

By touching it or sometimes you can see when they press against the glass

Water ones get to grow to nice sizes

Touch it to feel it. You can usually see through a water kok

and water kok during changes of water it will drop but hard kok wont drop which some time we call it the pingpong head or lychee head

water kok tends to be translucent like a water balloon when filled with water

this helped me out too lol

i like water kok as it can get very big

Water KoK are bigger. If you dont want to touch your fish, wait until the fish comes tot he top of the tank near the light and the KoK will be slightly translucent.

Hard KoK is small, but you dont have to worry about KoK flux also the KoK will always be the same color of the fish.