thebicyclecafe
New member
Depends on the concentration on the bottle. But at most household concentrations you can use the same amounts. Let's use 6%. Bleach is roughly 1.09 grams/mL. 95% of sodium hypochlorite is available chlorine, so here goes. If you have 1mL of 6% sodium hypochlorite, you have 1.09 g/mL x 6% x 95% = 0.062g available chlorine, or 62mg. Thus, if you add it to 1L of water you are functionally at the quoted 60mg/L. So, 1ml/L, which is the typical concentration for disinfection of culture medium. Ammonia binders... if there is ammonia in the water you want to bind it, regardless of chlorine. The fact that chlorine will bond with it to form chloramine doesn't change anything since once dechlroinated it just releases the bond and you have free ammonia. I have not read or heard of an ammonia binder reacting with sodium thiosulfate negatively. In fact Seachem's prime is both. I would however dechlorinate with straight sodium thiosulfate first since you could mix it to a known concentration. The water will most likely have ammonia in it since the tank would have little means of biological filtration. Although... one could theoretically soak 4 sponge filters for a few weeks in an established sump and place one into the QT when each transfer is made.
Anyone volunteer to do the conversion for this to household bleach per gallon? I'm not interested in re-using the water, but I would be interested in adding bleach to the tank after the fish is removed, keep the tank running with bleach-water for 24h, drain, rinse and dry for 24h, followed by re-setup.
For me, part of the benefit of 100% water change every three days is keeping the ammonia down in an uncycled tank. How does ammonia/ammonia binders fit in to this discussion as far as the water re-use is concerned? Does either one react with bleach of sodium thiosulfate negatively? Like I said I'm not interested in re-using the water, but something else to tink about for those who are.
Last edited: