Its a brick. Go to the base plate selection scroll down. There is the size 4x4 , 8x8 and a few other blocks of water. If you want something smaller get a brick the size you want and put it in the area you want (you can use multiple if you need to) then spray paint it blue. Then use the spray paint in the right column called undulo on the water. If you get it on anything else you can scroll through the spray paints and use FX none on it. Then once you spray paint the blue bricks use your wrench on it, unchecked rendering , check the box next to it saying copy and press send. Use your wrench on the rest of the bricks and press send on each one. Once you finish your build Get some good views press ctrl p to get pics. Get off block land go to C:/Blockland and click screen shots. Get the pics on go to gallery on the forums. Click additional options to put the pics on. Add a nice little description then post.
Hope this helps.
