Place the container near the tank, and below the water line of the tank. To operate the siphon, place the glass tube into the tank. Draw water by mouth into the siphon, and quickly place the flexible tubing into the container. Water should flow into the container. Siphon the bottom of the tank in a methodical manner to collect the eggs.
Siphons are to be used once.
When finished with the siphon, sterilize it by bleaching and rinsing. Never use a siphon in more than one tank. Removing marbles from a tank Marbles should be removed from tanks promptly. After siphoning, use a net to remove the marbles. Clean them with bleach and extensive rinsing.