Cheapest Filter you can buy for Small Aquarium & Little DIY

You have some really inexpensive aquarium filters available online or at pet stores to buy these days. Like the sponge filter, under gravel filter, Small hang on back filters etc. I came across a bowl filter at a local pet shop close to me. I was charged Rs.50 which is less than a dollar. Making this filter cheapest one I ever bought for a nano aquarium. However, this bowl filter needed a little DIY to increase it's efficiency. So I added bio-sponge for beneficial bacteria to accumulate in the sponge as this would keep the water clean. I did this because I get lots of questions asking if a certain fish can be kept without a filter? The answer is 'Yes', but its very difficult to keep a fish without filter & keep the water parameters stable. Hence, I though the best way would be to make a video on probably the worlds cheapest filter which can be bought online or at the pet store. I think I may have been successful with it. This filter maybe a good option over a sponge filter, as the bowl filter allows you to add filter media in the container below. You can use bio-sponge, ceramic rings, lava rocks, even activated carbon into it. It's suitable for small aquarium like a 10 gallon or 5 gallon tank. In the video aquarium you see is a 5 gallon aquarium with this filter. I've used the same filter in a 10 gallon community aquarium with Betta Fish. This small but effective filter maybe a good alternate for Betta fish aquariums & also are fry safe.
i hope you like the video; any questions please leave a comment.

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