If it is a bloom my approach would be to ride it out. It should burn itself out in time. Water changes arguably fuel it so keep an eye on your parameters and hold off if you can. Lights out may help as well, but for how long? May prove to be an issue for your plants. Patience usually wins here However if it is just kick up, as previously mentioned a bit of filter floss will work wonders. No harm in trying the floss if only to eliminate that possibility.
Sustainable Aquaria