Alright sounds like you can take it out, I don't have your filter but heres my description and see if it matches before following my advice. It's a tube connects to the intake on the filter(hang on back whisperish filter right) the tube is in the watter and points downward. The total intake tube will still be in the watter without it, but (heres what seems fuzzy) with it on the tube is too long touches the base of the tank so the filter hangs on an angle or is proped up higher. i've seen the kit at walmart just not in detail,
Pretty much though if this is a hob filter and the intake tube runs between the filter and the watter it'l work but it's best to be nearer to the bottom to pick up slow sinking waste, an option is too cut it, or jsut take out the removeable piece I don't see how it would make the filter stick out though unlless it's too long for the tank and hitting the bottome
hth but not sure what you talkin about