Eheim makes a battery operated gravel vacuum: http://www.marinedepot.com/ps_viewi...mpaign=mdcsegooglebase2&utm_content=EH3531090
Or you can hook the hose of your gravel vacuum to the intake tube of a HOB power filter and clean your gravel that way.
Or you can hook the hose of your gravel vacuum to the intake tube of a HOB power filter and clean your gravel that way.
