Do you ever buy an ink just for the name? If so, Octopus Fluids Petrol Axolotl would be a tough one to pass up! This ink is from the Write & Draw pigmented ink lineup, meaning the ink is permanent AND you need to pay a bit more attention to your pen cleaning routine. In my experience they clean well, but this is not an ink you want to leave unused in a pen for weeks on end. Enter accordingly!