Giant Octopodes
Farmer
Yeah fishing gets Very easy later on, still, catching Lava Eels and Octopodes proves challenging regardless of your in-game skill level unless your personal skill in the minigame is adequate. I love it, but then again I'm on PC using a mouse and keyboard. Mobile I can see being challenging based on my experience with games such as Crashlands (too easy to obscure what you're doing with your fingers), so I can see an external controller being incredibly helpful there. Others have covered initial tips quite well (use a training rod, fish in shallow water, etc). The other big thing is just powering through it. It only takes a couple of days of fishing to get up to 5 skill if you have the hang of things, so the 'hard part' is quite short, compared to how long it takes to level up foraging for example.
Three things I'll add to what others have said:
1) Pressing the appropriate input, in whatever way, adds Upwards Momentum to the bar, it does not raise it. This means, if it's heading downwards, repeated short presses Slow Down the bar, while holding it (which should be done VERY RARELY) will slow down the bar to a stop, then start it heading upwards, pretty rapidly. If you're trying to hold still, you need to press and release the input repeatedly to cancel out the downwards momentum naturally gained whenever the input is not being pressed. If you're "climbing" to where a fish is, you need to let go BEFORE you get there, so you don't fly past it, and can "hover" over it using those repeated short presses. If you're "dropping" to a fish, you need to start pressing the input BEFORE you get there, so you don't drop past it. I'm sure there's tutorials out there, but practice is the best teacher as they say. Just focus on getting used to HOW the bar responds to your inputs, more than catching the fish, and you'll get there in no time.
2) The single biggest thing that makes it easier is having a bigger bar. Beyond the training rod, the other way to achieve that is a higher fishing skill. Trout soup will give you a boost, and if you're *really* struggling, remember crab pots give you fishing XP as well, without the minigame. You can focus on those until you have an in-game skill level adequate to compensate for any personal struggles you may have.
3) There's some tricks which help with the harder fish, once you have the basics down pat. If you have a fish which quickly jerks an extreme distance in either direction (like the aforementioned lava eel or octopus), Don't Over Pursue! If they flew half a bar or more away, and you try to chase them, they'll likely fly back to where they were before you get there. A more consistently successful strategy is to wait for them to come back to you and focus on pursuing them when their motions are Not as extreme. Also, a lot of fish are bottom feeders. If a fish is hanging at the bottom, it's really easy to "bounce" the bar off the bottom and potentially lose the fish. As indicated above, if you tap at the right time and decelerate correctly, you can "land" on the bottom without bouncing, and mastering that technique will make catching All fish easier, but especially the ones which tend to hang right at that bottom marker. There are other tricks as well but those are the two biggest ones I'd recommend focusing on when you start going after more advanced fish.
Three things I'll add to what others have said:
1) Pressing the appropriate input, in whatever way, adds Upwards Momentum to the bar, it does not raise it. This means, if it's heading downwards, repeated short presses Slow Down the bar, while holding it (which should be done VERY RARELY) will slow down the bar to a stop, then start it heading upwards, pretty rapidly. If you're trying to hold still, you need to press and release the input repeatedly to cancel out the downwards momentum naturally gained whenever the input is not being pressed. If you're "climbing" to where a fish is, you need to let go BEFORE you get there, so you don't fly past it, and can "hover" over it using those repeated short presses. If you're "dropping" to a fish, you need to start pressing the input BEFORE you get there, so you don't drop past it. I'm sure there's tutorials out there, but practice is the best teacher as they say. Just focus on getting used to HOW the bar responds to your inputs, more than catching the fish, and you'll get there in no time.
2) The single biggest thing that makes it easier is having a bigger bar. Beyond the training rod, the other way to achieve that is a higher fishing skill. Trout soup will give you a boost, and if you're *really* struggling, remember crab pots give you fishing XP as well, without the minigame. You can focus on those until you have an in-game skill level adequate to compensate for any personal struggles you may have.
3) There's some tricks which help with the harder fish, once you have the basics down pat. If you have a fish which quickly jerks an extreme distance in either direction (like the aforementioned lava eel or octopus), Don't Over Pursue! If they flew half a bar or more away, and you try to chase them, they'll likely fly back to where they were before you get there. A more consistently successful strategy is to wait for them to come back to you and focus on pursuing them when their motions are Not as extreme. Also, a lot of fish are bottom feeders. If a fish is hanging at the bottom, it's really easy to "bounce" the bar off the bottom and potentially lose the fish. As indicated above, if you tap at the right time and decelerate correctly, you can "land" on the bottom without bouncing, and mastering that technique will make catching All fish easier, but especially the ones which tend to hang right at that bottom marker. There are other tricks as well but those are the two biggest ones I'd recommend focusing on when you start going after more advanced fish.