- What:the rock or sand material that you put on the bottom of the tank
- Why Important: if you want to grow live plants then it’s important to get a good substrate. Good bacteria grow in it.
- it also helps hide dirt
- Sand: since it’s very fine, it doesn’t hide dirt very well. It just sits on top of the sand. It’s good for corycats(who’s whiskers get hurt by hard substrates) and fish that like to dig in the substrate. Tip: get Malaysian trumpet snails that will burrow in the sand and keep if cleaner. Watch out when doing a water change. If you put the siphon too close it will suck up all the sand.