Fantastic
Finally a game in which you doesn't have to destroy your environment, instead you have to create a beautiful and colorful reef. I appreciate it, and liked it a lot.
The game is too short and do need some more challenging ideas in gameplay, because it is way too easy. If you put the polyps together according to their color, it is easy to just pickup the corresponding colored "food" to grow them up. And if that happened they are safe. Rival fishs are just clicked away or you feed them poison. Poison you can collect as same as the food, but you place them shortly "out of the flash area" where they do no harm. You only have to be a lil fast in handlign the mouse, nothign else.
The idea in using the vulcano to create the so needed correct "food" was great (more of these things would be nice, so you have to think a lil bit and "work" for it, not just collect) . The shells one level after were too easy as soon as you found out there usefulness.
Overall you get 5/5 from me for an astonishing fresh kind of game and nice graphics. Is worth to make a part 2 with new challenging things and a more strategical gameplay.