Dr Tim talks Ferguson Zones and Salt Production with ASF and RS

[@FreshwaterIchthyology]

Quick question, the anhydrous salts, are they sometimes why some aquariums seem to cause skin irritation? I've worked with some marine aquariums where after dipping my arms in the aquarium it causes so much irritation I need to wash my arms immediately. Nothing other visibly there, I've worn gloves with marine aquariums since.