Prime/Nitrite

[Jordan]

I am a huge fan of Seachem products… I currently use Prime, Stabilise and Malawi Buffer.

I am currently experiencing new tank syndrome… the tank has been set up for about 12 days now, and I am experiencing a Nitrite spike (coupled with a small outbreak of ich at the same time unfortunately).

My fish are:
-6 x 1” Labidochromis Caerulus (Electric Yellows)
-6 x 2” Sciaenochromis Fryeri (Electric Blues)
-6 x 1.5” Cryptocara Moori (Blue Dolphins)
-3 x 2” Bristlenose Catfish

My current tank parameters are:
-Tank is a 60G tank
-pH is 8
-0ppm Ammonia
-At least 10ppm nitrite (My test kit only goes up to 5ppm – even with a 2x dilution I was getting a reading of 10ppm)
-Not sure about Nitrate
-Temperature is 30 degrees celcius (to help get rid of ich)
-I have added 2tbsp per 5 gallons of water (to help with ich and nitrite spike) – a total of 24 tbsp of ocean salt in the tank
-I also added 4 times the normal dosage of Prime two days ago to help with the Nitrite spike.

Now – my question is… am I doing everything right? My fish aren’t flashing much anymore… but the Nitrite level is still very high. Does prime become ineffective after 24 hours of being in a tank? Should I re-dose with a 4x normal dose? How long should it take for my Nitrite bacteria to establish well enough to get my Nitrite levels down? I am really worried that the fish are getting a bad dose of nitrite and are being poisoned… although the fish don’t seem to stressed at present.

Thanks for any advice you can provide me with and thank you for
creating such brilliant products!!!

Regards,
Jordan