I started an approximate version of Imperial Pilsner from Extreme Brewing on 12/26. Started with an OG of 1.1. Fermentation did not take off for close to a week. ( Storing carboy in 48 degree fridge) On 1/8 I noticed no more bubbles in the airlock. Took another hydrometer reading at 60 degrees with 1.060 as the result. Bubbles started again after I put on another sanitized airlock. My questions are should I just let it keep going again, should I adjust the temp, and will I need a diacetyl rest before adding the final hops for secondary fermentation. This is my first batch in over 7 years and don't want to mess it up. Any help is appreciated.