Shipping heat pack?

[Enchanted Reefs]

overnight temps will be between 45-50 should i use a heat pack?

 

[PotomacReef]

overnight temps will be between 45-50 should i use a heat pack?

I would. One extra ventilation hole and pack some damp paper towels in there. Don't let the heat pack touch the bags directly and give a small insulation buffer -- paper towels, packing peanuts, etc.

 

[bobby.w.hodges]

I would. One extra ventilation hole and pack some damp paper towels in there. Don't let the heat pack touch the bags directly and give a small insulation buffer -- paper towels, packing peanuts, etc.

What's the damp paper towel purpose?

 

[PhilSD211]

Are people using the 40 hour and 72 hour heat pads from Amazon?

 

[PotomacReef]

What's the damp paper towel purpose?

If you have some ventilation than the heat pack will heat up the water on the paper towels and allow the water on the paper towels to evaporate. Most heat packs need incoming air anyway (even a few tiny holes.

It will usually keep the specimen water a bit cooler if things get too hot than the heat pack with no damp towels.

Admittedly I haven't tested this scientifically, but it makes sense and I've done this before shipping coral in room temp highs and low temp night situations like this time of year.