So I soon starting a 29 gallon project, due to the limited space I have and I would rather work my way up to a larger tank. I have most everything I need for the project, except substrate. I did not do any fluoride or sand in my last tank, but I am thinking about doing it in the new tank. My question is, is it absolutely neccessary... I know it probably helps with plant growth and everything. What happens when you gravel vacuum? Do you suck up the fluoride or other smaller substrate. I was wondering if someone could point me in the right direction for using fluoride or something else fairly cheap.
I know once I try it, I will be mad that I did not use it in my smaller tank. But I guess there is nothing I can do now.