Thanx il try that. I dont have CO2 injection but i do dose with liquid CO2 so fingers crossedNot many aquatic plants will flower submerged. Anubias nana will flower under the right conditions, i have some in a tank that didn't run anything in the way of CO2 and was dosed occasionally and never got a flower. I now have some in a tank that has C02 and is dosed with NO3+PO4 and get flowers all the time. You could always try some Anubias.