I have a 35 or 37 gallon (dont remember) tank and was debating whether to pay the 37$ and get a Red Sea Co2 bio generator kit or just make my own.. Are the red sea kits any good? from what i understand its just a manufactured DYI.. Planning on making a moss wall with some java fern and a moss floor.. Im hoping to have 24 Neon tetras- 12 black 12 normal- with maybe 5 or 6 other fish, and, maybe eventually put 30 or 40 Red cherry shrimp in there too.. So, should i pay the 37$ plus refills? or just get the kit and make my own mixtures instead of refills? or just make it from scratch.. If i make it from scratch, what do i need other than the bottle and tubing, yeast, sugar, etc.. does the hose go strait into the water? do you need some sort of diffuser? Suggestions as to what equipement to put pleaseee.. first time putting plants in my tank.. Ive had tanks for 5 or so years now.. got my 35 or 37 gallon tank around a year and a half ago but i figure its time to upgrade it from plain fake plants to something a little nicer.. I appreciate all input!