Without wishing to speak for him, I believe Darrel uses the 'pinch or dip' technique with dry salts
This is hilarious...well @Wookii, lets see what Darrel says here:
A small slosh ... I love this A slosh is similar to a slop which is close to a splash which is widely recognized to be just about 5.91 ml. I suppose a small slosh would be around 3 ml... - hard to say if thats a lot for a 70 L low-tech tank, but we do not have enough information to work out the ppm's.
Now, 10 ppm of N, that was worked out fairly painstakingly... Again, a lot for a low-tech! I am curious about the rationale for that high level of Nitrogen, but I suppose that the occasional dosing will have to make up for a pretty long run.
So the blue color comes from a dye that is used in terrestrial fertilizers to enable the user (applicator) to see what has and hasn't been fertilized and how even the distribution is. It can also be used to gauge the concentration of the fertilizer when diluted into a liquid - see below:
Sounds pretty slipshod, but in reality its probably accurate enough if your memory for color is goodThen I just need to ensure that the water I add to the tank is always less blue than my trial run.
An here comes... wait for it... The Snail Shell index...!
Perhaps the message here is that we too often waste our time getting too caught up in measuring things out to the last digit on our microgram scales?Without wishing to speak for him, I believe Darrel uses the 'pinch or dip' technique with dry salts using complex mammalian opposable digits - not a gram scale in sight!
I very much agree... What sets UKAPS apart is the excellent signal to noise ratio... While other forums may have a lot more members, and thus posts, you will have to dig through a lot more less relevant posts (noise) to find the good information (signal).This is the best forum ever. You could spend days here reading there is just so much to digest. I have so many bookmarked posts the list now runs into pages. I think I need a computer just dedicated to these articles.