It boils down to personal preference, affordability, technology, and reliability. The vortechs aren't exactly cheap, but they are fairly reliable and operate without wires in the tank, plus ecotech has amazing customer service. My personal opinion, if water is moving in a way that coral are happy with, who cares what it looks like. As long as it didn't put your bank account in a bad place and you trust it enough to not electrocute the tank or fail at the most inopportune time, you should be fine. Sent from my SM-G970U1 using Tapatalk