@RD. was absolutely right when he stated that didn't matter how high the intake of a HOB filter was sand will still find away into the filter and impeller housing. In my case a African Peacock Cichlid was the culprit. Trying to decide on wether or not to go with a sponge filter. I don't want to run a sump or canister filter on the 55 gallon. So stumbled across this video for anyone interested its a bit long but worth watching. If this guys store was in my area I would probably be a loyal customer from something he stated in the video.