i have mentioned this on an old topic but no one has answered yet so i thought id try posting here, i had a lot of trouble of fish dying and my kH getting too low, eventually i stabilized the system but fish still kept dying and i couldnt find out why, now i have no fish left. i want to restock and start again but before i did i send the water off for a full analysis. i only know the tolerance of tilapia to the things we test for using the usual test kits but this anlysis shows me having very high sulphates (S04) i dont know if this has come from the lime we have been using?
also the analysis reveals a fair amount of nickel and also aluminium i was wondering if this is an issue and where it may of come from?
any help would be very much appreciated
It's the fluoride.
What does the local city utility water report say is in your local water?