I had seen the article but did not want to assume that S. tinanti and S. casurius were identical in their needs. They seem to be closely related. They have an under developed swim bladder and do spend most of their time on the bottom or just perched on a rock. Very cool little fish.
I was hoping there might be a small peaceful cichlid I could add. Otherwise I will just have to go with tetras, they are just not one of my favorite fish.
The syno's are not a must have, and as I will not be keeping any fry, I thought they might be a nice addition if they did not harass the tinanti.