I never bring in my cycads indoors, they always stay outside, and our temps had gone down to 28F in winter, so 54F is okay. I use just tap water in watering them..no harm done either. When I water them I do a thorough watering, water draining out the bottom, and allowed to dry before next watering. The plants like the moisture but do not like wet feet, that is why good drainage is important.
