Link and Maru
Greenhorn
Each upgrade to Crab Pots take 25% more bait, excluding copper. Base Crab Pots now require copper and have bars that look like they are made of it. Iron/Steel Crab Pots are better than normal Crab Pots but look and cost the same, they will catch all fish (fish found in lava can only be caught if you put iron/steel or better in lava), can be placed in lava, and are 25% more efficient. Gold will have gold bars and Iridium will have iridium bars and also each give 25% more, so an Iridium Crab Pot will have 75% more efficiency. Radioactive Crab Pots have green bars, have 100% more efficiency and can be placed in the sewers (fish found in the sewers can only be caught if you put radioactive in the sewers).