The ammonia spike in my newly started frog tank is over! So there is hope that the biofilters will eventually make this water Very Very Clean even with six well fed frogs in just 11 gallons.
In the nitrite spike now.
Added a sprig of Elodea as my first live plant.
I had to remove one of their favorite perches; the petrified wood 'rock' that I used turned out to be alkaline and was making my water rather basic.

Also, I am still picking out a rock now and then from the tank. This is three weeks after I got them from the store. These rocks all came from the media that the frogs were sitting in at the store. The most recent pebble was rather sharp. SIX rocks or so for six frogs. Most of them came out in the first week, some took longer!