Fishless Cycling....

[robyngunston]

I was trying to work out how many drops of Ammonia to add to my tank using a bucket and half way through the process I realised I had a test kit that only went to 2 (not 6) which defeated the object......but until then I had added 6 drops and was getting a reading of about 1.3 does this sounds normal? I just thought it seemed like a lot of drops already.?

 

[Squid]

I used the following calculation to work out how much to put in. (depends on the % solution of your ammonia)

so.. 5ppm

if 1 litre is 1000 ml, then 1000 litres is 1 million ml...

then 5ml of pure ammonia is 5 ppm in that soltion..

so

100,000 ml of water would require 0.5 ml ammonia

10,000 ml of water (ten litres) would require 0.05ml of ammonia

the solution is only about 10% ammonia, so that would need 0.5ml of my solution

so i tested this in a bucket and it went green (somewhere over 4ppm, but not entirely sure as the kit is not that clear over 4ppm)

so..

my 180 litre tank would require 18 * 0.5 =9ml of my solution..

Hope that helps, but as you can see, it depends on your ammonia solution. I also used a syringe to get the ml right instead of drops, so it depends on how many of your drops there are to a ml.

Cheers
Squid

 

[mark.w.jones]

Works great if you have 100% pure ammonia but some are solutions are watered down. I put 10 litres of water in a bucket. Added 5 drops of ammonia solution. Then tested ammonia levels. Added another 5 drops and tested again. etc. etc. until I got to the magic 5ppm. Then multiplied up to get the number of drops needed for 45 litres of water.

Added this number to the tank and checked just to make sure, then continued with add and wait fishless cycling instructions.

http/www.fishforums.net/index.php?showto...3861&hl=methods