Wow, so many new folks we hardly have time to meet them all, WELCOME TO THE FORUM. Lots of questions being asked and thats good, if you never ask one, you for sure will not get an answer. Most of you need to start journals right away, the rest can wait for a day. Remember to put a link to your Journal in your Signature, that way when you stop in their journals and tell them how good their 'Ghetto Setup' is, they will see your journal and visit it and tell you how nice it looks.
THANX FOR THE PICTURES, WE LIKE PICTURES, A PICTURE IS LIKE A THOUSAND WORDS. We consider them almost necessary unless you want dumb, underinformed answers, and all of the plants posted look like they are doing ok.
There are several threads about controlling pest, spider mites and fungus gnats primarily, take a look at a few, h2o2 will not affect gnats or mites, it will kill pathogens, germs, bacteria etc. not insects. Welcome. VV