Questions

Can I use Miracle-grow plant food spikes for indoor growing? Also how often should I water and how much, thanks

I won't say you can't but I sure as hell wounldn't.

Maybe you should do some research before you start growing.

This is why I'm asking questions

Ok. I've been on here for a over a year reading, reading, and reading some more. My first grow was almost exactly like you are talking about. Now I wouldn't try that unless its my last option. From what I've read, miracle grow is not very suuitable for marijuana. There are certain soil ratios and nute ratios in order to maximize your growth. Both miracle grow and the food spikes aren't suited for pot. I'm growing in a different medium so I can't give you specifics. But keep reading, reading, and reading some more. You will find all the answers you want on here. But beware: nearly every question you can think of has been asked before. The more times it's asked, the less likely you are to get a response. Some people on here are dicks, others are cool, just like the normal population(no offense to anyone in particular other than the fatman). You might want to grow thick skin if you don't have some already. I can't stress this enough, read, read, read.