If you want to use sodium thiosulphate I desolve 60 grams of crystals in one liter of water, of this solution I add 2 drops for every gallon of tapwater
If you want to use sodium thiosulphate I desolve 60 grams of crystals in one liter of water, of this solution I add 2 drops for every gallon of tapwater
My discus are not fat...just big fish-boned
I do not premix sodium thoisulfate. I simply use one crystal per 5 - 10 gal of water. I've been using it for approximately 15-20 years this way.I did have a recipe for mixing but the chemist where I buy it told me not to premix it to save for later; something to do with it's bond to water. I don't know how factual that is but he was the chemist. The water company in your area will let folks know if they have chlorine or chloramine. I think it's the law, here anyways.
For substrate vacuuming I'm looking at something similar to Mark's :sand hog" found here: http://forum.simplydiscus.com/showth...t=#post1316894
I like the idea of keeping vac and wc separate.
Lot of people also use Eheim Quick Vaccum pro :
https://www.amazon.com/Automatic-Gra.../dp/B003C5U2SU