Above Ground Pool Vaccum (Which One?)

I have a 33' above ground pool with a sand dollar 60 200 lb sand filter with Pentair 1.5 hp pump. Looking for a good vacuum robotic, automatic, etc. I don't have problems with leafs just dead algae in the bottom small particles that sort. All opinions welcome...
Kevin

I have a Wanda the Whale that I think does a pretty good job in my pool getting dust and dirt off the bottom. (I also have a Polaris 65 but that I use mostly for times when I have leaves, twigs and big stuff in the pool.)

Thanks. That is one of the ones I was looking at..