need suggestions and guidance
I currently have a 20g planted tank that I'm enjoying a lot. However, it was a fish only tank before and therefore doesn't have the proper substrate. This tank is in my classroom (I'm a teacher). I would like to start one at home (another 20 gallon high).
I need suggestions on a type of substrate. I don't want to make my own and would rather have something I can just pour in if possible. I found this and like the black color: It's eco-complete.
Is this any good or are there better options on other sites?
How much do I need. I understand that sometime you put the soil in and cover it with a type of gravel. Is this correct and what type of "cap" is necessary?
Thank you so much for any guidance you can offer!!!