I've had some algae issues this past week and I believe it's from a high level of p04. I have about 33 gallons of water total between my DT and sump. Should I do one 10 gallon water change or should I split it into two? I usually do 5 gallon water changes once every 3-4 weeks. I will probably do them about once a week until I get the algae under control again.
