how do you build a “water changer” for a fish tank without using a syphon or expensive material?

preferably without using electrical appliances!!

Changing water using tubes can work, but if you have a tube of silicon that you have used or is almost gone, you can attach a plastic tube to the end of that after you properly cleaned it and it works pretty well. Plus the silicon isn’t dangerous for your fish.
It is better than just a tube because then you can use it to siphon and clean your gravel.


Brand New 75FT PYTHON NO SPILL CLEAN AND FILL Item #7514 75NS


Brand New 75FT PYTHON NO SPILL CLEAN AND FILL Item #7514 75NS


$69.99


Python no spill clean and fill is a complete ready to use system which adapts easily to most faucets and makes water changes a breeze. It drains as well as fills aquariums. For saltwater, fill a container next to the aquarium to prepare the salt mix. When prepared, use the python to clean the tank, then use a pump or powerhead to fill the aquarium. Python no spill clean and fill system includes th…