Aqueon Siphon Vacuum with Priming Bulb Aquarium Gravel Cleaner
Avoid this product due to poor performance and design issues.
Dr. Tim's Aquatics Reef Re-Fresh Marine Aquarium Cleaner offers some benefit in cleaning your aquarium, but it's not a substitute for regular water changes. It can provide some time before you need to clean the tank more thoroughly.
If being used as a quick replacement it will not work.
Prevention: Users recommended to stick to periodic water changes
It prolongs your water change schedule.
It does not replace the need for regular water changes.
It is not a substitute for performing the regular water change which is essential for the health of your tank and maybe used to tide over between periods and hence comes in handy.