See this link:
http://www.futureweb.at/download2
You will finde page1.pdf, page2.pdf, page3.pdf with some logos of similar companies that they don't get too close.
The most favorite logo is the file logo.jpg, while the 2 logos at logo_fontstyle.jpg are nice as the Word KOI comes out clear.
What we don't like at logo.jpg is, that the fish goes through the font, we more think of the text
Tirol
Koi
Steiner
where KOI is the biggest word, the other ones smaller, and the fish below but not going within.
Important is, that the fish (koi) has nice marks on the body as it's typically for a koi.
To get info about koi's, look here:
http://en.wikipedia.org/wiki/Koi
And there is one more thing that should possibly be covered in the logo. "Tirol" is a state from austria with a lot of mountains, and the town we are from has a famous mountain called "Wilder Kaiser".
The mountain should be incorporated within the logo as silhouette.
Examples are here:
Good Image of the Wilder Kaiser:
http://www.wilder-kaiser.com/
You also see it within the golf club logo what we mean, just that this is of course too colorful.
Here another one where it shows the typical 2 heels of the mountain:
http://www.golfweltwilderkaiser.com/de/ One higher the other one smaller.