This past week I got a spawn of A. pertensis and now have wrigglers. The spawn came hours after I conducted an 80% water change with all r/o. When I took parameter readings I was surprised to see a pH of 4.4! Keep in mind that this is very soft water, so while it is decisively acidic, it is very diluted. I believe it would be a different story when hard tap water drops that low. Still, I can't recall getting an Apisto spawn at this low of a pH. (Tetras and Rasbora, but not Apistos.) Also, yesterday I found Apistogrammoides eggs--finally. She still is guarding about ten. I'm keeping my fingers crossed. - --Randy