This is my first post on The Planted Tank Forum. I have experience with general fishkeeping and am still new to planted tanks but have some knowledge about them (balance of the 'three components' (light, co2, and ferts), lighting factors such as tank depth, type of light, etc.) So, my first planted tank attempt is a 20 gallon long and currently has amazon swords, dwarf hairgrass, crypt wendtii, and ludwigia arcuata. Since most of the plants I have require medium to high light, I bought a T5HO fixture (Zoo Med AquaSun). Considering the fact that a 20 gallon long is only a foot deep, I am only using 1 bulb (the Ultra Sun one). Currently I am dosing Seachem Flourish and API CO2 Booster (similar to Excel), and I know liquid carbon will not suffice. However, I do not know how to (efficiently) make a DIY CO2 generator. When I first tried to make one, the yeast mixture leaked into my aquarium, causing a huge disaster that lasted several weeks. Fortunately there were no inhabitants in the tank during that time. Now I want to be able to do it right, however, there are many things that I do not understand about DIY CO2. I'd like to know:
-What bubble counters, gas separators, and reactors are and how to make them (if I need them)
-How to prevent the spillage of yeast into the aquarium
-The most effective (cost and time-wise) method of diffusing the CO2 gas into the aquarium.
Could you also explain these concepts to me in the simplest way possible?
Also, since I am new to planted tanks, could somebody tell me if I am doing anything wrong? Thank you.
20 Gallon Long
Plants: Echinodorus amazonicus, Eleocharis parvula, Cryptocoryne wendtii, and Ludwigia arcuata (all from Petsmart
Fertilization: Seachem Flourish
Substrate: Petco black aquarium sand with Flourish Root Tabs
Lighting: Zoo Med Aquasun 30" T5HO fixture with 1x Zoo Med Ultra Sun 6500k Super Daylight bulb
CO2: API CO2 Booster until I can do DIY CO2
P.S.: Sorry for the long post.