seaside aquatics

So, I have a seaside aquatics AS21 skimmer. Rated for a 300g aquarium it runs 2 PSK1000. I got this used for nearly next to nothing. The previous owners I think treated it like trash. Current issues Had to throw away 1 of the PSK pumps due to the magnitized propeller ruptured and expanded...

Wasn't sure if I should post here or livestock forum but here goes. I have a complete setup including livestock. I have a biocube 29 with tons of different corals ranging from zoas to acros, to shrooms and Lps. It has a pair of lightning maroon clowns with a rose bta hosting them, a pearly...