Internal vibration thoughts

[harley628]

Would like to hear your thoughts on the effects of internal pump vibration on corals.
Recently plumbed an external DIY filter using a power head and it caused corals to Immediately close. (Already went through the steps to find the issue) after much experimentation with flow rates, different angles of return, changing Pump To ensure it wasn’t stray voltage or the like and cleaning of pipes to ensure no uncured cement I changed to external DC PUMP. Problem solved. Opened back up within 10 minutes of removing power head. What are your thoughts on this? Previous experience?

 

[Doctorgori]

I can follow your thinking here ... good post

 

[Timfish]

From what I've seen and the research papers I've read noise can affect corals. What is not so clear is the long term negative or positive influence it has on coral health.