Dec 21, 2001, 12:59 AM
Post #27 of 34
When adding salt. The easiest way to work out how much to add is this simple equation:
1000 litres of water weighs 1000kg.
So I'm not sure how much water you have in your pond. Lets say its 10,000 litres. To make a 0.1% salt resolution, you need to add 10kg of salt (I know it sounds allot, but its right trust me).
0.1% of salt will prevent nitrate poisioning.
However if you say you now have black spots on the koi it may be worth increasing this to 0.3% which will be 30kg of salt.
To add the salt you should just spinkle it over the surface, make sure you get all of the pond. Adding 30kg of salt in one shot will stress your fish, you need to introduce it gradually. Add about 2kg every 2 hours. Over the weekend will be best (unless you are around during weekdays).
You may want to net one of your fish for closer examination of the black spots.
They may be ancor worms. Just make sure that the spots do not have a tail poking out.
apart from that the 0.3% salt should get rid of most parasites.
Unless its a case of life or death, you should never change more than 50% of the water at any one time. Sorry to disagree Tony [biggrin].
Don't worry too much about your green water for now, the bio filter takes about 3 -4 week to fully mature (sometimes longer, depending on the weather). The more important is getting your water down to the relevant levels.
Also, can you post some information about your filter set up, as we may be able to suggest some minor adjustments that will help you out a great deal.
I hope this helps.
(This post was edited by SMW1 on Aug 12, 2002, 9:00 AM)