When you touch it, if your finger print remains imprinted on the skin then it's not fresh. Look at the eyes of the fish and if they are milky in color then it's not fresh. The skin shouldn't' look dry or discolored in anyway. Your best insurance when buying wild Alaska Salmon is to know your purveyor. Buying direct from Alaska is your guarantee of getting Wild Salmon.
In survival, the player must venture to a stronghold to activate a pre-existing end portal. However, in creative, the player can build an end portal. The player needs 12 eyes of ender, and should construct a ring of portal frame blocks that encloses a 3Ã3 square, and use the eyes of Ender to activate them.
If you haven't been to the Nether, you need to build a nether portal to take you to the Nether. When you walk through a nether portal, it will transport you between the Overworld and the Nether. You can also summon a wither boss using a cheat if you are in Minecraft PC.