Well it's pretty easy realy, make up your own fish like this:
><)))',> Simple ehh?


Helped by Nemyar.

Fish Keeping Kit Price $15 (Just kidding)
________
|_|_|_|_|
|--------|
|_______|
|-Fish---| For Feeding Your fish
|_Food__| (I got the idea for fish food from Charley)
|_______|

-_____
-|_|_|_|
-/----- \
|_______|
|-Fish---| For Curing your fish's illness
|_Med___|
|_______|

Plus Two Free Fish
<'))))><(
)><(((('>

<,'(((((><( is the best I can do.

Oh wow lol I didn't know I copyed yours. sorry
just kept trying to get mouth and eye and thats what I ended up with. started out with this (9((((><( and didn't like it so I changed to the above.

---A
<*))))><( shark
---V

{o))))><( Wide eyed

<>< baby fish

<>+++< dead fish

<)))))< carrot fish

(><((((K> funk fish

zzzZZZZZ
<u))))>< sleepy fish

---M
<'///)><( neat scaled fish
---W

<~}}}}><( fashion fish

<X)))))><( tired fish

<Isabel))><( Name fish

<^)))><( happy fish

<:)))><( casual swimmer

< ))><( smiley fish (can also be moody fish)

<'##)><) shimmer fish

<*;;;;><( sick fish

<~)))><( bold/brave/show off fish

<*)))))><{ Pretty fin

<3)))><( love fish (or mouse fish in my opinion)

<$)))><{ money fish

<@)))><} "@ fish"

--?
---A
<")))><{{ clueless
---U

Just a few fishy ideas...

O
-o
0
-o
---A
<*))))><(
---V

Wow! quit a few there izzy!

I managed to make one with eye and mouth
<',)))><( Cheerful fish

<'.)))><( Fish with mouth

Now the hard bit: create the fish with fins
Here my favorite one
--\\\\
)><((('.>
--////

......./
......//
< ((((((((<>{ Float fish!
......\\
.......\

I called him Twinfin Guppy
Don't mind me for my bad naming skill