im new to plants and planted tanks. i have a few jungle vals and java moss in a 10 gallon. i want to add co2 and dont have room for a 5# tank and system so i plan on doing a 2L bottle and a nano diffuser. does any one have the receipe for the mixture to put in a 2L bottle? thanks for any help. and i did look for the mixture in advance i was just not successful. thanks again.