Does my fish tank HAVE to have a substrate?

Does my fish tank HAVE to have a substrate?

Substrate in fish tanks refers to the gravel, rocks, sand, etc that is on the bottom of your tank. Certainly it increases your tank's aesthetic appeal, but do you really need it? The answer = no. "But it provides biological filtration!" Yes, your substrate does hold some of the friendly nitrogen-converting bacteria, but to a [...]

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Aquarium Filtration

How do you choose the best filter for your fish tank? There are two main types of filters you can use on your aquarium - hang-on and canister. No matter what type you choose, remember the all important point - NEVER REPLACE YOUR FILTER MEDIA!! Hang-On Filters Our favorite filter - you can go figure [...]