First, pay attention to changing water.
Change about 20% of the water every week, and ensure that the new water does not contain chlorine and heavy metals, which may affect the health of corals or make unnecessary algae grow. Before mixing chemical salts, it is best to filter fresh water with a secondary filter. Reverse osmosis or deionized water filters can remove chemicals from tap water. The salinity of fresh brine should be between 1.022 ~ 1.024, and the salinity should be kept as stable as possible and should not be changed frequently. It is very important to detect the pH value every day, and the more convenient method is to use an electronic acidity meter. The Ph value should be controlled between 8. 1-8.4.
Second, the ratio of calcium.
The calcium content in the water is very important for those hard corals. They will use a lot of calcium to build bones, and the calcium in the water will gradually decrease. It is dangerous when the calcium content drops to 350ppm. It is best to use 400 ppm calcium chloride.
Third, proper lighting.
Too weak light will reduce the growth of invertebrates and destroy the balance of the system. If you find that your living stone is very clean without any algae, it may not be a good situation. But how many light sources are good for coral growth? It is a good practice to use halogen/fluorescent lamps and timers to illuminate for 8- 10 hours every day.
Coral needs proper lighting.
Fourth, temperature.
The temperature of fish tank water may be higher than room temperature, and electrical appliances (such as halogen lamps and submersible pumps) will continue to heat up. If your room temperature is 32℃ in summer, the fish tank water may already be 36℃. You can add a bottle of ice water to cool the fish tank water, but the effect will not last long and it is also dangerous to the fish (due to the sudden change of water temperature). Blowing a fan on the water helps to lower the water temperature (2℃-3℃). A more convenient method is to install a water cooler.
Beware of animals that eat corals.
Don't misplace any fish that like coral, such as round fish and shells. Optional:
1, anemone fish: bride, red apple, tomato, clown, etc.
2, Sparidae: green devils, blue devils, velvet and so on.
3. Arova Branch: Doctor, Red Dragon, Huanglong, etc.
4, little angelfish (details): flame fairy, fire back fairy, coral beauty and so on.
5. Sparidae: purple crane, yellow crane, etc.
Coral not only relies on algae to provide nutrition, but also continuously filters zooplankton to sustain life. In our artificial environment, there are so few zooplankton in seawater tanks that the nutrients provided by photosynthesis of phytoplankton alone may not meet their growth needs. If the software in the seawater tank is basically hungry or semi-hungry, corals will still shrink or even die for a long time. Because my coral has starved to death, too. Some coral anemones will continue to shrink even if they keep feeding for a long time. Therefore, we need to choose some suitable feed to feed. Generally speaking, fresh shrimp, or hatched shrimp, frozen red worms and small fish are very useful for coral reproduction.