Most aquarium vacuums are too small to suck up even a small goldfish.
The Penn Plax Small Aquarium Gravel Vacuum is a super aquarium cleaner, scraper, and siphon
How to Make a Gentle Aquarium Siphon 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...
I recently bought a small aquarium air pump, not really realizing that “pump” in this case meant blowing air, not sucking. A quick search turned up almost no information online, but converting it into a vacuum pump turned out to be quite easy.
The Best Ever DIY Syphon for Bettas or Small Tanks - YouTube
The Best Ever Syphon for Bettas or Small Tanks
Regular readers will recall that I made some time at the end of last year. In my review of the smaller vacuum, I had stated I would be needing a larger one and would review that product as well. Now that my goldfish, Nix and Hydra, are permanently moved from their “starter tank” to their home in a 60 gallon aquarium at school, I needed to upgrade my gravel vacuum, so here I am again.Aquarium maintenance can be a pain, but if you are equipped with the proper aquarium gravel vacuum, the task will be much easier. The Top Fin manual hand pump is suitable for all aquariums and it is available in small, medium, large, and ex-large. The PVC hose is extremely flexible, so you can clean all of those hard-to-reach areas without difficulty. The Top Fin aquarium siphon is equipped with an easy-start mechanism that will definitely come in handy and this is much simpler than having to do the hand pumping action, just to get the water to suck up into the vacuum.Airline tubing - the small diameter makes it safe for small fish, and is easy to maneuver in small tanks; length depends on your aquarium set up. Mine is about a meter long.
Stiff plastic straw - this will allow you to move the siphon in the tank without putting your hand inside. This means the fish will be less disturbed when you clean the tank.
Clean, food-safe airtight plastic container - it should be big enough to hold the water you will be removing from the tank, but not too big because that would make it hard to establish the vacuum to start the siphon. You can use glass, but it would be heavier. I am using a large popcorn tub.
Blu-tack - used to seal holes and make things airtight
ScissorsThe Python 6PC Pro Clean-Mini has many features that make it a popular model. This unit is suitable for cleaning fish aquariums that hold up to 10 gallons of water with the same no-spill design of the larger Python models. This model features a 1-inch in diameter by 6-inch long vacuum tube that makes removing debris from gravel in small fish tanks easier due to the compact design of the unit. Included with the vacuum are 72 inches of heavy-duty flexible tubing.