I was a bit worried about the water flow behind the slate at first.. but after I replaced my aging Fluval 404 with a Rena XP3 and redid my plumbing there is enough flow through the tank that the slate stays relatively clean, and the water doesn't have many "still" area's.
When I do my weekly water changes I do spot checks in areas to make sure everything is working smoothly. This is FAR from a low maintenance tank. I spend about a half hour to an hour a day now keeping things running smoothly.
Well, this is abad pic, but its the ONLY pic I've managed to get of this little guy. He hides out alot in the slate and is very camera shy. Something about the lense scares him.
Here is one of the platties in the tank, I have a soft spot for livebearers so I usually have some around somewhere.
And here is one of my Apisto's. I was expecting them to be a bit more bossy then they are, but most squabbles seem to limited to the three in the tank. The Largest adult blue ram is definately the tank "boss".