3 watts per gallon on the 75 gallon tank. PH is 7.4ish. it's tough to get the damn tap water PH down.
Its too much if your fish are heading to the surface and gasping for air. If they're not then its either just right and you'll see the result in your plant growth; or its not enough and you wont see any results in your plant growth.I'm running CO2 when the lights are on with a diffuser. I have about 1 bubble every 2 seconds. Is that enough or too much? It a 75 gallon tank with Anubias, swords, and some cuba. thanks.
Got to agree with this thinking. No way to say how much is enough. some plants grow and use more, some less as well as all the other variables. Like watts per gallon? The type of light using those watts and lots of small things like how far away and how deep the tank, how tall the plants and what types? Too many factors to say what is right, so just slowly increase and watch the fish is good for me.Its too much if your fish are heading to the surface and gasping for air. If they're not then its either just right and you'll see the result in your plant growth; or its not enough and you wont see any results in your plant growth.
Comparing rates of co2 injection by how many bubbles you see is essentially worthless. Whats a standard bubble? How much pressure does your system run at to create that bubble? what kind of bubble counter? what kind of medium is in the bubble counter. Hell your elevation above sea level and barometric pressure could even play a small role in the variations there. My point is, dont worry about how much you inject compared to how much someone else injects.
The bubble counter is nice for you to have as a visual reference. But it doesnt really tell you much other than maybe you're injecting more today than you were yesterday. Still wont tell you if you're injecting enough, too much, or not enough. Use the bubble counter coupled with a drop checker. Now you have an idea of how much (using the bubble counter) you need to add to see a drop in ph of about 1 (using the drop checker). Once you get to that point is where the fine tuning comes in and what I think the best thing to do is watch your livestock. Essentially keep adding co2 until you see an adverse reaction from the fish (gasping for air at the surface). Now back off on the co2 a bit and you've pretty much found the sweet spot for this tank and this tank only.