Sodium thiosulfate is used for
many, many things, I can't say if it will bind heavy metals but I know it's used in photographic processing as well as for making colloidal silver, and this is my limited knowledge of its use beyond that for aquatics.
I would be worried it would bind Fertilizer metals later...?
Did you see what it said about sodium thiosulfate:
* Note: Products where the second "Y" is in brackets are those which state that they remove chloramine, but in most cases contain only sodium thiosulfate (the same as standard dechlorinators for chlorine only). Usually, a higher dose is recommended for chloramines - this is to make sure the chlorine part is split from the chloramine and neutralised - however, this releases the ammonia part, so the chloramine is not fully dealt with. An example of the manufacturers' awareness of this, is shown by the fact that API recommend Ammo-Lock in conjunction with Stress Coat, if you need to deal with ammonia.
Correct, because in newly established tanks NH3 is the biggest problem to deal with and that could kill animals, after that it's NO2 (nitrite). It's got to be oxidized into NO3, and even that can reach deadly levels.
Thats weird because the only other product that is listed by API that will effect chloramine is just changing the ammonia, so u still have to deal with it.
Ammo-Lock is hydromethane sulfinate, it converts ammonia to ammonium. Ammonium is harmless to fish at levels found in an aquarium, but is used the same as ammonia by your nitrifying bacteria. It is also seen the same as ammonia with test strips, which give horribly inaccurate results, and single reagent Nessler tests. A two reagent Salicylate test will discriminate ammonia from ammonium.
Nessler reagents will show NH3 present if certain dechlorinators are used, this is a problem and frankly, I'm surprised Nessler tests are still out there. I'm with you on the test strips, what a waste of time and money! However, I'm not so sure that NH4 is harmless to fish.
Zeolite is another product that's used to lock onto free ammonia, we use(d) (to) use it when shipping really dirty FW fishes such as koi and goldies. A handful in the bag is all it takes!
As stated, you need to find where the ammonia is coming from, and why. Even if you do use Ammo-Lock to convert ammonia to ammonium the next thing you are bound to see is nitrite. There is no "Nitrite-Lock" for dealing with this, and nitrite in high enough concentrations can be just as deadly as ammonia.
Yeah, but that's for aquatic animals, not Mary. I would like the ammonia (a good source of N) to be freed up or, even better, converted to NO3 (nitrate).
If you look at Billygoats picture of API Tap Water Conditioner it says works on Chlorine and Chloramine. On that page it only says Chlorine. Wtf??
Mixed up, whoever is handling their advertising.
A cursory search using this "
does sodium thiosulfate bind heavy metals" has given me these results, and it appears that it is indeed used for something that we could loosely say qualifies.