Ideas for Powerhead Redundancy?

andrewey

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Hoping to poll the audience and see if anyone has a good solution :)

On my 20 AIO gallon reef and I'm currently using a small DC wavemaker (e.g. hygger) in addition to dual returns. I've played around with it, and I still need the powerhead to hit certain areas of the tank. My issue with these wavemakers is that a stray bit of cheato or small baby trochus can jam the pump/stop the blade, and the built in controller will stop/lock out the powerhead until the blockage is cleared out. This isn't the biggest issue in the world until I'm traveling and away from the tank.

At present, I have a second duplicate powerhead set up next to the primary, so if the first becomes clogged, my tank sitter simply plugs in the redundant pump until I arrive home. While this works, I would like to add an extra layer of redundancy, so I'm not relying on a single point of failure. Unfortunately, running both pumps simultaneously produces too much flow for this mixed reef. Therefore, does anyone have any suggestions on:

1) How to automate the switching process. I was considering using some type of controller based on power draw, but didn't know if this would work in the scenario I described.
2) Another wavemaker with a small footprint that wouldn't be too strong in a Nuvo 20 and isn't prone to stopping when encountering a temporary disruption (e.g. baby grazing snail)? I have tried 5 different wavemakers in this form factor, but all have this design issue for my use case.
 

TX_REEF

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I honestly can't say I've ever had a snail stop my hygger pump - I do use the gyre style pump, though. Once in a while I do have a snail get into the enclosure, but the pump keeps going, albeit with an annoying grinding sound. Are you using the "puck" shaped ones? maybe consider a gyre instead. https://amzn.to/4cKyeDD

At any rate, unless you're travelling away from your tank for weeks, I'd suspect your tank would be ok with just the return pump flow for a few days.

If I was dead-set on your plan, I'd probably set up a camera that could observe via wifi if the pump fails, and then have another pump plugged into a wifi outlet that I could turn on remotely. Kasa products would be perfect for this: https://amzn.to/3OuArsU
 

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