Two days ago i purchased a compressed co2 setup and have it running.

It has been running all day at about 2-3 bps and that plants dont seem to be aspirating at all. I checked nitrates and they are at 30ppm, my phosphates at about 2ppm, and i dosed mico ferts yesterday. Any reason why the plants are not responding to the co2? Do i need to inject more? I dont have a hardness measurement but i put some gh booster in there two days ago. Any idea? Ph is around 7.

Thanks!

sorry

60gals

You didn't say how big your tank is, so the 2-3 bubbles per second doesn't mean anything. It would be a lot for a 10 gallon tank, but very little for a 180 gallon tank. If you get a drop checker you can tell how much CO2 is in the water, which is what counts.

sorry 60 gals

What's your lighting set-up?

4 x 65w pc's they are less then 4mths old.

You would have better results, most likely, with half as much light. And, 2-3 bubbles per second is probably too low for a 60 gallon tank. But, only with a drop checker used correctly can you be sure.

so too much light can limit growth?

Too much light without an adequate supply of all nutrients, including carbon, can cause the available nutrients to be quickly used up by the most competitive plants, leaving the others limited in growth. But, worst of all, too much light without vigorously growing plants is an invitation to algae to take over.

any reason running 3-4bps all day and the co2 indicator and plants dont start responding until about the last hour of light?

If nutrients are in place(macs and mics) and there is good flow throughout the tank, then slowly increase the bps. Also are you starting the CO2 1-2 hours before lights on? and off about one hour before lights off? Don't get to hung up on the count of bps. Only use this for moving up or down for a current position. Your drop checker if fill with a 4kdh solution should register around 2 hours from light on. Keep working on it, shouldn't take long to get set. Then periodic checking as tank fills in.