Parameters: TDS: 120 - 150 PH: 6.5 Temp: 6.8 - 7.5 (heater-less) Introducing the Super Black Crystal Caridina – the epitome of elegance and allure in the world of freshwater aquariums. Renowned for their stunning jet-black coloration and captivating demeanor, these Caridina shrimp are a breathtaking addition to any aquascape. With their glossy ebony exoskeletons, each Super Black Crystal Caridina shimmers with an iridescent sheen, creating a mesmerizing spectacle as they glide gracefully through the aquatic environment. Their striking appearance is further accentuated by the contrast of vibrant green vegetation and fine substrate, making them a focal point in any aquarium setup.