Any new aquarium tank should first be given a thorough test to ensure that it is watertight. If after 12 hours there are no leaks, it may be emptied and placed in its final position.

Now all is ready to set up the aquarium, for this work we shall require various items such as sand, rocks etc. These will be death with in order. For making a bottom soil, you need, first of all some sand, the most suitable is called 1/16th grade and it is about the size of the average pin-head:

The gravel to be used must also be graded; that is, the gram must be of uniform size. Sand and gravel