Having 1/20th of daily volume of bitcoin is next to impossible for a normal trader. So, your process might work for some alt coin. So, this post should go under Alt coin section. Please use the bottom left button to move this post.
Moved to alt section.
There are two problems with your instructions that make me doubt your expertise.
First, if you place a sell order at 0.00024985, then you are selling below the highest bids. That doesn't make sense. You can place an order as high as 0.00025002 and it will be executed immediately.
Thanks for pointing out that spread is lesser than 366. I wanted to started from the basic mechanism of trading, from the novice level.
Second, by placing a sell order, you are not manipulating the order book or the market. You are placing an order, just like everyone else.
Trading is like a pool, every executed order has a ripple associated with it.