an improved fracking tank comprising a tank assembly comprising a first section and a fluidly attached second section , where the lower surface of the floor of the second section is higher than the lower surface of the floor of the first section , and where said tank assembly has a fluid holding capacity in the range of 8 , 400 gallons to 30 , 000 gallons , also comprising a trailer assembly detachably attached to said tank assembly comprising a first portion with a first surface supporting the tank first section and also comprising a plurality of axles , and a second portion with a second surface supporting the tank assembly second section , and further comprising a hitch portion .