All fish have to RuneScape gold stay submerged. You can't head from the water following you or in your inventory. Speak to the Fish Tamer to provide him the fish. You can only have one fish at a time even if the fish is using the tamer. Why you cannot put them in the bank is since you need to give them into the Fish Tamer.
You can also have a house underwater in Mogrin. Your dungeon will be temporarily removed until you move your home to a location that is not underwater. Having a home in Mogrin unlocks a new feature for your PoH. When you are in Mogrin you can add an aquarium to your PoH. When you move your property, it will still be there and you'll be able to upgrade your aquarium objects but you cannot make another aquarium till you move back to Mogrin.
To create an aquarium, then you should have level 54 construction. When you enter your aquarium, then you will understand a hotspot which resembles a massive fish tank. To make it you must have level 54 structure, 3 regular planks, 8 claws and 4 molten glass bits. This way you'll have 5 little fish or one medium sized fish. For them, go to the Fish Tamer. Sorry folks, emergency, gotta go, I'll update more later.
The Grand Exchange allows for fast and speedy trading through different worlds so would not it be nice if you could also lend and lease items across worlds as well? You'd be able to offer up your items for renting or just for free if you really feel like it and another individual who matches your supply may lease that item out foro the given time. The rack would be just located on the Grand Exchange and you would be allowed to give an item and ask to borrow an item.
It is possible to rent out your items quickly this way. Just speak with the person who works in the rack, and click on the action you wish to do if it be borrowing or lending. The amount which you can rent your item out for is equal to these benchmarks for OSRS buy gold the normal trading limit.