FAQ Category: Pond Maintenance

What is a Secchi Disk?

A Secchi disk is a round metal object that’s painted black and white. The disk is attached to a string and then lowered into a pond until it’s at a depth where it can no longer be seen. This is called the Secchi Depth. Purchase a Secchi Disk (Test Assured) from Nualgi...

Can I Keep my UV Filter on When Dosing Nualgi?

No, you should turn off the UV filter when dosing Nualgi. UV filters are designed to kill certain parasites and harmful bacteria. Unfortunately, they also kill beneficial bacteria, microbes and diatoms in the water column. Nualgi is designed to create a healthy...