FishmanJosh
Aquarium Advice Regular
My 20g marine has had a few problems as of late, and I have just bought a refractometer to replace my swing arm hydrometer. In doing this I have discovered that the salinity levels in the tank are actually quite high - around 1.030.
So my question is: How do I go about lowering the levels? I could do a water change and replace with only RO water but I am worried this might give the fish a shock. I could also gradually replace my water by doing lower salinity saltwater changes over a few months. What would be the best course of action?
Thanks for your help
So my question is: How do I go about lowering the levels? I could do a water change and replace with only RO water but I am worried this might give the fish a shock. I could also gradually replace my water by doing lower salinity saltwater changes over a few months. What would be the best course of action?
Thanks for your help