- Apr 13, 2019
- Reaction score
I’ve seen Coral only tanks be successful with regular 100% water changes. Bacteria mainly need a surface to live on, not a lot of surfaces in the water column.Question on bacteria in the water column. From my readings bacteria live on surfaces rock glass sand rotting food etc. while there is a smaller population in the water column I haven’t seen any info that would contra indicate water changes. Was there a percentage of WC that you read to be a worry?
In my head we buy live sand live rock no live water so never considered the possibility of doing harm with a water change unless it was massive and done in a hurry without matching temp,salinity,DKH, Ca mag and such. Did a quick search but ineffective in finding out more on WC damaging bio filter share a link if ya got it as my curiosity is peaked