What is the reason why the pH value drops to 3 during the sea water tank? Sea Salt: the equivalent ratio of water to its own primary sea to redeem trace elements in seawater and containing water,But if needed,The water supplied to coral and marine fish is generally additive to trace elements in the market,The sea enables it to achieve the desired results,And the addition or need to be very accurate, after all,Some software and fish are very demanding on water quality,Like hard coral,That is what we call SPS,Sea salt is generally a common AB in Germany (remember to look at the purchase of genuine,Good stuff,But left,Not small ).The brand of the second Red Sea can also leave suggestions for LZ less,If the sea is raised,These two words or better,Personally, AB is very good.Skymer: it is necessary to improve the offshore tanker,But only the equipment that is excluded from the sea is organic,China 1,It's not a filter,But a simple machine;China 2,It breaks down organic matter into her pr
There is no limit for ROYAL HOME FURNITURE CO.,LTD. HOME furniture to pursue excellence in quality. Check now! ROYAL, Dedicated to R&D and Production in the Manufacturing Furniture Industry Compared with products in the same category, oak chairs's core competencies are mainly reflected in the following aspects. ROYAL is able to meet customers' needs to the greatest extent by providing customers with one-stop and high-quality solutions.
Junior high school chemistry summary !!! 1. chemistry is an experiment-based natural science that studies the composition, structure, nature and change laws of substances.What physics and chemistry have in common: natural science based on experiments.2. the fundamental difference between chemical change and physical change is whether there are any new substances.Some phenomena such as heat release, light emission, discoloration, gas release and precipitation occur in chemical changes.3. physical properties--State, odor, melting point, boiling point, hardness, density, extensibility, solubility, volatility, conductivity, adsorption, etc.4. chemical properties--Oxidation, reduction, metal activity, activity, stability, corrosiveness, toxicity, etc.5. after heati
