I guess in the end, I'd like to see Petco be successful at this with DFS and LA, but the way they are right now, it's not going to happen. Educated customers do not shop there (at least at the local store) and the new customers that buy marine are set up for failure before they even begin by what comes out of the tanks.
The new customer that is intrigued by having a "living reef" or a "living tropical ocean" in their house depends on the employee to steer them in the right direction. This can't happen without the employee's knowledge to pass on. That newbie customer is going to have guaranteed failure and a sour taste in their mouth and will never want to touch saltwater again because they will feel like they just tossed their money in the toilet.
This is what i hope Petco get's a handle on.