Nothing special. You can still catch them.
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Nothing they just look a BIT different but everything else is the same
What do you mean?, runescape is still there. If you wish to visit runescape go to "runescape.com"
The best way to fish on runescape is to use a net or a fishing rod and bait in draynor. Then it is easy to bank your fish
On the pier in Karamaja ;)
Raw fish.
From Runescape Wikia: "The Cavefish are a type of fish that can only be found in the Living Rock Caverns. The Living Rock Caverns can be found underneath the Dwarven Mine..."
There are various spots throughout all of runescape you can harpoon fish, the main ones are catherby, the fishing guild, and the island of karajama
Bass is a members only fish, only members can fish it.
no
Yes.
Rocktail
80+
No. In runescape, there are lots of places you can fish swordfish.