FishingKnight
unfortunately 'Bass'ken' is the only lake currently supporting alchemy and only the guppies can be used for it, along with a few junk.
Small correction... or should I say LARGE correction.
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Rubyback and Diamondbacks are used in the backwing recipes for Alchemy, which makes Sands and Slate very desirable and adds Durem to the list of affected lakes.
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FishingKnight
Gear and Clothe, Trading enough fish along with a few ingredients can create a nice set of clothes for that wonderful avatar, (keep in mind that you cannot mixed match fish for gear) in other words only guppies for guppy gear and cannot mix a guppy with a bass and make gear out of it no matter what amount you have, Trading system.
There actually does happen to be an item that uses both guppies and bass, with an addition of stripers. It's a hat called Food Chain (plus whatever colors of fish are used in the making)
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Also it should be noted that not all of the items you can trade for require items outside of fishing. You can make some lovely hats with just 100 of each fish, and sometimes a few other combinations. Check
Gaidin's Fishing Guide for a comprehensive list of all the things you can trade into Logan to get.
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