Goldfish are very cheap and can usually be bought for under $0.50 because they are over bread.
rocks and pirite ship
yes
Yes! But seriosly, the rocks wont make any difference!
Usually at the bottom of the tank in the rocks.
yes. just dont put the rocks ON the gold fish...
Goldfish are like this. When they want more food, they scavenge for bits that can be hidden it the rocks. It seems like it wants to eat the rock but it is actually looking for extra food, but don't give them more food, because it is natural for them to do this.
No actually. When I got my baby goldfish, he was fine in a large glass tank with a filter, a bunch of colorful rocks, and a bunch of decorations. Just don't put he/she in a tank with goldfish that are older, bigger, or goldfish that ur new baby goldfish just doesn't know because, believe it or not, goldfish can be aggressive. They can also be very territorial. I hoped I helped alot. Ur Welcome. :)
Trying to find air bubbles, or poo or leftover food to eat
chemical reactions
The mineral constituents of rocks are the major source of their color.
In aquariums, they constantly skim the water surface and suck rocks to find bits of food that they missed when they were fed. In the wild, they typically nip on plants and eat insects. Goldfish are known to think that everything is food. Their lives are an endless search of food and they never get tired of food. A healthy goldfish can go for days without food.
No newts need to be able to get out of water. I would put gavel in the bottom and some rocks for them to climb on and hide under. Then have water an inch or two above the gravel not the rocks though