well i am new to planted tanks. right now i have a 29 gallon tank with 2 diy co2 bottles, regular gravel but will switching to flourite in the near future, and the only chemical i have is florapride. i will be placing a order this week some time so i a looking for some input on other chemicals i need to please feel free to put ur input in. also where can i find a co2 diffuser the only one that i can find is on ebay and they are from japan. also with the Hagen Bubble Counter work or not. i know it has a diffuser on the end of it. so please help me out