Legend of zelda/ obtain fish for jabu jabu

If your looking for the Blue Tunic, you can find them one in one of two places. In Zora's Domain near the frozen waterfall, is a shop whose entrance is blocked by pinkish-red ice which can be melted with blue fire. You can buy the tunic inside the shop, but it is a little expensive. alternately you can simply use blue fire to melt the ice around King Zora who is also in Zora's Domain. Blue fire, as well as the Iron Boots can be found inside the ice caverns. These caverns are located in the same area where Lord Jabu-Jabu ( the giant fish you saved princess Ruto in as a kid) used to be. You can reach the caverns by crossing several floating sheets of ice.

Instead of catching a fish in the fishing pond, you need to find a shallow area of water (there's one in the Zora caverns near the Zora shop) and stand in it. Then, assign the empty bottle to a C button, and press that C button to use it. When you are near a fish in the shallow water and use your bottle, the bottle will scoop up the fish. You can then feed it to Jabu Jabu.

Go to Colin's house and talk to his mother.

Make sure you have the fishing rod first. The cat will be hanging around the pond behind one of the houses, it wants to catch a fish for the shopkeeper. Start fishing there, once you catch the second fish press B and the cat will steal it and run off back to the shopkeeper. Then go and talk to the shop keeper, she will give you a bottle of milk and then you are able to purchase the slingshot. Hope this helps :)

To fish on the Fishing Hole just go into the small building and pay to fish, the guide will explain how to do everything. You can fish without paying, but you won't catch fish near as big or diverse as the ones while on the boat. Just get some bait off the side of the small building (the beehive - knock it down and take the larva) and fish with your own baited fishing rod. When you cast the rod, wait until the hook is tugged down by a fish, then pull it up. Btw, you can obtain a glass bottle this way, there's one in a closed off area of the pond beside the small bridge.

you buy it from the guy with the poles

you missed something...

Simply place it in the water and pull when it goes downwards

You should be able to L Target the goron and press the corrosponding button to show it to him if my memory serves correctly.

No, if you beat the fishing hole game you'll get the frog lure, good but not for the job, you must go through the hole in Zora´s Domain and talk to the "monster" there, she will give you a sketch, you must go to Kakariko village´s graveyard and show the Zora prince the sketch, he will give you an earring which will automatically add to your fishing rod, then go to Zora's Domain and fish the reekfish as if it were any other fish