Brinkley is a purple elephant with white tusks who can scuba dive. After completing Adventure Mode, he can be bought for 20000 Shells.
Involvement
Brinkley is useful as a fast money maker. You can feed him fish food and in exchange, he gives you money/shells. He follows a cycle, which in most cases, can give you money faster than other fishes. Though later in the level, he can become unnecessary. Whilst in screensaver, he can be paired with Zorf and either Stinky, Clyde or both as an extra way to earn shells. He can also be used to feed starcatchers while in screensaver, or if you do not have star guppies in Adventure Mode.
The Cycle
This is the cycle which Brinkley follows. The number represents the number of times Brinkley is fed.
3 - Star
6 - Star
9 - Star
12 - Diamond / Blue Shell
15 - Star
18 - Star
21 - Star
24 - Diamond / Blue Shell
27 - Star
30 - Star
33 - Star
36 - Pearl / Spiral Shell
39 - Star
42 - Star
45 - Star
48 - Diamond / Blue Shell
51 - Star
54 - Star
57 - Star
60 - Diamond / Blue Shell
63 - Star
66 - Star
69 - Star
72 - Pearl / Spiral Shell
75 - Star
78 - Star
81 - Star
84 - Diamond / Blue Shell
87 - Star
90 - Star
93 - Star
96 - Diamond / Blue Shell
99 - Star
102 - Star
105 - Star
108 - Treasure Chest / Bag O' Shells
After which, the cycle repeats itself.
Story
Brinkley was a performing elephant for many years before escaping his cruel circus masters. Unfortunately, Brinkley could not escape his own voracious appetite. An appetite for... food!
Gallery
Videos
Here is a short video of how to use him: