I'm setting up a small saltwater mixing station. I will be mixing 10 gallons of saltwater at a time. So, for something that small, what cheap powerhead would you guys suggest? I saw a video where the NEWA Maxi was recommended. I found the Maxi Multi-Use Powerhead - MP400 (106 GPH) on BRS for $34.00. Would 106 gph be sufficient to effectively stir 10g worth of saltwater? In your opinion, is there something even cheaper that would do the job?