Tiny fish-shaped soy sauce bottles are the latest casualty in Australia’s fight against waste, outlawed by single-use plastic laws that took effect on Monday. In its “Replace the Waste” guidance, South Australia’s government said the rules target single-serve soy sauce containers under 30 milliliters, most often shaped like fish but sometimes pigs, rectangles or other novelty designs.The ban applies to all rigid plastic condiment containers with lids under that size, commonly handed out with takeaway…