Can I add thiosulfate to this for the chlorine? I think the tank itself is like 10L
Yes no problem you might get away with it - the elodea should be okay - daphnia maybe not - May as well try
Oh I see. Never thought of letting the water temp rise to room temp before adding things to a tankMine are in tap water.
Do you let the water reach room temp before you add it to the tank? Could be cold shock killing them