I don’t really know I think I would take 4-5 days because usps is a mess in my experience rn I had packages sit in one spot for a week or go back to places they’ve already been instead of coming closer he’s in a .5 gallon I think but it’s more of how it’s set up it’s got a supper weak filter with perma allege and no decorations I the only other tanks I have right now due to a discus plague breakout are a convict chiclid witch would eat him in no time and and axolotl in a 40b but I think it would be too cold as his tank is in the mid 60s