* Perfect catches improve the quality by one grade, as long as the fish was at least silver quality initially.
* Perfect catches improve the quality by one grade, as long as the fish was at least silver quality initially.
* The [[Quality Bobber]] will improve the quality by one grade.
* The [[Quality Bobber]] will improve the quality by one grade.
+
+
The maximum base quality grade (without improvements from perfect catches or the Quality Bobber) is gold. Therefore, the only ways to catch iridium-quality fish are either getting a perfect catch or using the Quality Bobber.
[[File:FishZone.png|200px|thumb|right|Pool of Bubbles]]
[[File:FishZone.png|200px|thumb|right|Pool of Bubbles]]