You will need
  • - silicone sealant for aquariums,
  • - nail file.
The first thing you need to clean the seams in the leaks, in this case, you will have to move all the fish at a time into another container and drain the water from the aquarium. Remove all the fixtures, the ground and plants, thoroughly wash the aquarium and dry.
Now we can start to address this problem. Carefully inspect the seams, they are filled with a special material – sealant, which over time loses its unique adhesive quality, and then breaking the connections, respectively, the aquarium begins to leak.
Take a small sharp object, it can be a metal nail file or small spatula, and gently clean from the sodden seam sealer. Proceed very carefully so as not to accidentally damage the glass. Clean absolutely all the rubber parts of the substance that the seam remained almost clean. Of course the work is not easy, but after a thorough cleaning you will only need to seal the inner joints with silicone sealant specifically designed for aquarium. It is perfectly cope with the task.
Apply a small amount of sealant on the internal seam and try it wet and soapy finger pushed as deep as possible inside the joints. Try to do it so that the seam was completely filled with sealant, let it is a little better than he will be missed. With a nail file smooth out the silicone and spread the excess on the surface. After all the seams are sealed, leave the aquarium to dry for two days. After the allotted time, fill it with water and see the fruits of your labors. If the leak is not there – then you did the right thing.