How Do You Make A Gentle Aquarium Siphon Or Vacuum?
Siphons (or gravel vacuums) are a great way to get rid of debris in an aquarium. A ‘gentle’ siphon, while slower than a normal siphon, is great for small tanks, quarantine or hospital tanks and tanks with fry, small fish or sick fish. As an added bonus, they are very cheap and easy to make. • Rinse and dry the air tubes and bottle in clean water, taking particular care to clean the bottle if it has been washed in detergent or soap or had anything other than water in it (like fruit juice). • Remove the lid and carefully bore two holes in it using the tip of the pocketknife blade (or the boring tool if you have one). The holes should be barely big enough to squeeze the air tube through. • Insert the short piece of air tube into one of the holes so that there is less than a finger width sticking through the lower side of the lid. • Insert the long piece of air tube so that the amount on the lower side of the lid is about the height of the bottle. • Apply sealant where the air tube meets t