Blizzard has taken several of my suggestions posted on-- of all places-- the Suggestions forum. However, I can assure you that the fishing bag has been suggested. And, like everything else in the Suggestions forujm, some morons quote your entire message and refute it point by point, holding forth on exactly why it will never happen, even when it's already in the public test realm patch. But, I digress.
Pygmy Suckerfish reverse the usual fish-to-oil ratio. Firefin Snappers and Oily Blackmouths require 2 fish per oil; Pygmy Suckerfish will give you one or two flasks for each fish. (And are a great source of Omega-3 fatty acid, I should add.) So you can think of them as potentially 1.5 flasks of oil apiece.
Now, Pygmy Oil is fun in and of itself. Have someone douse you with Baby Spice and, as Steve Martin said, Let's get Small. But it also goes into a few mid- to high-end Alchemist recipes. Thing is, unless you're supplying your guild with Guru's Elixir and Potions of Wild Magic, you don't need that many Suckerfish... and yeah, dang near everything in the oceans and rivers of Northrend have them, even crystallized water and supply crates. Plus, you get some Pygmy Oil as a reward from the Dalaran fishing dailies
Me, I can't bear to throw things away, so my level 58 banker holds onto several bags' worth of fish and oil. If they add more recipes that use it, I'm there.
