Use biocides safely. Always read the label and product information before use.
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Any algae control product that kills algae, such as JBL AlgoPond forte, AlgoPond green, or Algol, causes the dead algae to decompose biologically and be broken down by bacteria. This in turn leads to enormous oxygen consumption by the bacteria (nitrification) and the release of the nutrients nitrate and phosphate, which were "bound" in the algae. In principle, this feeds the next generation of algae. This is why JBL always recommends binding the released nutrients as the final step in algae control after targeted treatment with an algae product. Since it is sufficient to remove one of the two nutrients, we recommend phosphate removal, which can be done very easily with a good phosphate remover (JBL PhosEx Pond or JBL PhosEx). Incidentally, it therefore always makes sense to remove dying or dead algae mechanically. The less algae is broken down, the fewer nutrients are released again!
Start using the algae treatment by changing at least 30% of the water, as described on the product label. If the algae are stubborn, you can add another dose after 5 days. This means you'll need to change the water again before adding another dose. If you don't repeat the treatment, it's still a good idea to change the water to reduce the amount of dead algae in the tank.
Regarding algae in cichlid aquariums. This is a permanent problem, as there is always an excess of nutrients in aquariums with few plants. JBL Algol may need to be dosed several times, for example at weekly intervals. Please carry out a 50% water change beforehand and ensure that the aquarium is well aerated.
Depending on the species, mosses may be sensitive to Algol; this is certainly the case with moss balls. Dwarf shrimp may also react sensitively to Algol; our experience varies depending on the species. In addition, there are the general water values to consider.
With JBL Algol, negative effects on freshwater shrimp, especially more sensitive dwarf shrimp, cannot be ruled out.
Blue-green algae are a somewhat complicated topic. Blue-green algae are bacteria, as is well known. They perform photosynthesis just like plants. Blue-green algae are among the oldest organisms in the world and should have died out long ago if it weren't for a few special characteristics, one of which is their ability to influence the medium in which they live to their advantage, i.e., to manipulate environmental parameters (something not many organisms can do). This characteristic has ensured their survival. In nature, blue-green algae are usually niche dwellers that are always inferior to other organisms. Like all plants, blue-green algae need light and nutrients. However, blue-green algae also need a settlement substrate on which to grow. They are inferior to "normal" biofilms in nature and in aquariums and can only spread if there has been a disturbance and partial death of the "normal" biofilm. They then settle quickly and subsequently overgrow the "normal" biofilm. Since they change the water parameters beneath their own layer, the normal biofilm dies off over a large area and the blue-green algae aquarium is born. Algae agents are only of limited use against blue-green algae. The only method that really helps at present is complete light deprivation, to which they are very sensitive.
When using JBL Algol repeatedly, we recommend waiting 7 days between applications. Before reapplying, be sure to change 50-70% of the water. Please note that harmful effects on aquatic plants cannot be ruled out with repeated use. Furthermore, JBL Algol does not eliminate the cause of emerging algae growth. In this case, the care conditions should be checked.
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