Nutrafin Betta Plus Tap Water Conditioner. Nutrafin Betta Plus - Tap Water Conditioner makes tap water safe for bettas by neutralizing chlorine, chloramine and undesirable metals. Betta Plus protects fish scales and fins, reduces nitrite toxicity, and helps reduce stress. It also helps reduce inflammation and undesirable conditions that can arise from scrapes, torn fins and abrasions. Betta Plus also contains tropical almond leaf extract, a natural element found in betta habitats, that conditions and supports a betta-friendly environment, allowing them to thrive and show their full colour potential. Available Sizes: 60 mL (2 fl oz) / 120 mL (4 fl oz)