well i have another idea. beacuse i dont want to put the rocks in the fish tank
i am thinking about makeing the bottem of the fish tank look like a junk yard.
well what do you think about this. i am going to put hotwheels on the bottem of the tank partly submarged in the gravle. thoughts annyone?

Hotwheels???? you can put many things in your tank but there are a few things you do need to watch. Anything that leaks and this could be metals,plastics,woods,rocks just to name a few. most items you buy from the pet shop is fine and has been tested but if you wish to add something that would not normally go with fish needs to be considered carefully. something that dont poision us maybe deadly to a fish. not sure what hotwheels are but i think its a toy car??? I wouldnt use if it is.

hotwheels cars will rust and i would say that rust will be very bad for your tank..
good idea though, i would just do it with cars made from stone or pot:)