3-5 ppm?

[Jeff]

Is 1/4 tsp equalilant to 3-5 ppm in 20 g?

[Carol_Roberts]

If you are talking about ammonia, I don't know.

I do know that I put about a half a capful in a 29 gallon every 2 or 3 days and the already cycled filter stays fully cycled and ready for an adult pair. I've kept tanks going 2 or 3 months this way as my discus population expands and contracts.

[Jeff]

Thanks. No I'm trying some new drugs. I know the chemist told me 3-5 ppm but not exactly how that relates to gallons. The best I can figure is 1/4 tsp to 20 gallons.

[Discusgeo]

Jeff drugs are a totally different thing and each one is different and the way it reacts to different situations. You are going to have to ask the person whom you got it from to be a little more specific on what your needs are. Tell us what drug you are using, maybe I or someone else has already used it and can give you something more to work with in terms of dosage.
George

[Jeff]

Ok thanks!

[trucdan]

Jeff,
Here is the fomular to calculate ppm:
ppm = (weight of solute in gram /weight of sample in gram) x 10^6

You will need a scale to make it accuratetly.

HTP

TD

[Ardan]

George posted a link for a calculator in the disease section. :)
http://forum.simplydiscus.com//index.php?board=4;action=display;threadid=14502;st art=0#lastPost

[Divantie]

Jeff

10 grains of a pure substance per gallon is 172 ppm!!

You do the math!
Good thing I pass my water grade 2 exam.

[Martin_HONGKONG]

1 tsp=5g
1/4 tsp = 1.25 g

1 US gallon = 3.78 liter

1.25 g in 20 US gallon

=1.25 g in 20 x 3.78 x 1000 ml
=1.25 g in 75600ml

The question was how many ppm
=1.25 / 75600 x 1,000,000
=16.5 ppm

In order to get the required 3-5 ppm
Take 1/4 tsp dilute it with 3/4 tsp to 1 tsp water.
Then take 1 part of this diluted solution to 20 g water
16.5 ppm /4 to 16.5 /5

4.125 ppm - 3.3ppm

Martin

[Jeff]

thanks martin. :)