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#aquarium #fishtank #aquaticlife #fish #fishtank #shrimp #aquascape To help you choose a substrate, I made a video using coral, soil, sand, gravel, tank, etc. as substrates. 00:00 Intro 01:00 Types of substrates 01:31 Roles of substrates 01:58 Substrate 1 03:55 Substrate 2 04:49 Substrate 3 06:30 Substrate 4 07:20 Tank 07:47 How to operate an aquarium well