Hey guys i have a quick question. I recently purchased a pressurized co2 system for my HC only aquarium. (NO FISH). I also have a solenoid connected on the system. Currently I have a slight string algae problem and i am hoping the Co2 will take care of that.
1) My question is how much Co2 can i pump in ?
2) Is there a point when there is just too much co2?
3) What is the optimal PPM for HC growth and reduce algae?
My set up
10 gallon (regular size)
t5OH 24 watts with direct reflectors
I'd base it off the HC response, really you're wasting your CO2 with that wattage if you pump in for more than 15 or 20 ppm. You should strive to deliver as little to them as possible and still get good growth and maybe some cool pearling!
I could be mistaken here but the CO2 won't kill off the algae. The algae needs to be starved of the nutrients feeding it and this is best accomplished by having growing plants, consistent CO2 levels, and consistent mineral and fert levels. Algae is far more adaptable than the plants so when these levels get out of balance, the plants will sometimes shut down and the algae steps up its game.
You can hit a point at which growth starts to be stunted but it's pretty high. In terrestrial plants ideal/economical artificial CO2 rates are between 500-1000ppm. No idea what that translates to in aquatic plants. Couple helpful charts:
And what Idrankwhat says, CO2 doesn't kill algae, it just helps the plants out-compete it.
I just turn mine up to where my drop checker is an almost invisible yellow. However, it's good to keep it close to where it's going to be with fish after a few weeks unless you never plan for live stock.