Nutrafin water conditioner is sodium thiosulfate based, which means it only deals with chlorine residuals. If you have chloramine treated water it would be best to stick with Seachem, as both Prime & Safe will render the free ammonia (NH3) into a harmless form, at least for a period of time. Otherwise with the Nutrafin product with every water change you will also be adding ammonia. (with chloramine treated water) Either way at this point adding Prime would help detoxify your ammonia levels.
I had a look at your water treatment report for Montreal, and I can't find a residual level for disinfectant, but maybe I missed something? You might be best to call & ask. http://ville.montreal.qc.ca/portal/page?_dad=portal&_pageid=6937,68593573&_schema=PORTAL
But with a pH range around 8.0 year round, you really need to find out, as free ammonia is much more toxic at higher pH values. One last thing to note, the normal ammonia test strips and kits found at your LFS will give false ammonia readings when using Seachem Prime.
https://www.seachem.com/support/for...512-prime-and-false-positive-ammonia-readings
A cheap, quick, and accurate way to keep an eye on your NH3.
https://www.seachem.com/ammonia-alert.php
or you can get the whole test kit.
https://www.seachem.com/multitest-ammonia.php
And what Duane is saying is key, do not mess with any of your filters or media at this point. Every time that you do you take a step backwards in the cycle process. Especially in a bare bottom tank, as almost all of your bio bacteria is going to be found in your filter media.
Good luck.
I had a look at your water treatment report for Montreal, and I can't find a residual level for disinfectant, but maybe I missed something? You might be best to call & ask. http://ville.montreal.qc.ca/portal/page?_dad=portal&_pageid=6937,68593573&_schema=PORTAL
But with a pH range around 8.0 year round, you really need to find out, as free ammonia is much more toxic at higher pH values. One last thing to note, the normal ammonia test strips and kits found at your LFS will give false ammonia readings when using Seachem Prime.
https://www.seachem.com/support/for...512-prime-and-false-positive-ammonia-readings
A cheap, quick, and accurate way to keep an eye on your NH3.
https://www.seachem.com/ammonia-alert.php
or you can get the whole test kit.
https://www.seachem.com/multitest-ammonia.php
And what Duane is saying is key, do not mess with any of your filters or media at this point. Every time that you do you take a step backwards in the cycle process. Especially in a bare bottom tank, as almost all of your bio bacteria is going to be found in your filter media.
Good luck.