JBL PROSCAPE N +MACROELEMENTS 250ml
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A comprehensive answer to this question cannot be provided, as this would require a comprehensive analysis of the water, the fertilisation, lighting and the carbon dioxide supply, plus regular water care. _x000D_ _x000D_ Although algae can be attributed to an excess of nutrients - particularly phosphate and nitrate in this case, - in many cases, they are also the result of a lack of so-called micronutrients, of which iron is the best known. Very often, this is the deeper cause of the algae problem. _x000D_ _x000D_ When algae growth occurs, it is generally highly advisable to increase the amount and frequency of water changes, make sure there is a sufficient supply of fast-growing plants and fertilise these with JBL Ferropol or JBL Ferropol 24 in accordance with the instructions. _x000D_
Algae problems in an aquarium can never be traced to just one factor or general condition, and instead, are always the result of a combination of different factors, which include light, fertilization, water changes – specifically, how often and how much – feeding, fish population and, of course, the specific water parameters. _x000D_ _x000D_ According to analyses that were performed over a course of a number of years, red algae, at least the common brush algae and beard algae, occur in descending order at the following parameters: _x000D_ _x000D_ 1) too little carbon dioxide (in relationship to 100 % of the measured tank); the pH level should be in the slightly acetic range, depending on the carbonate hardness, in every case. _x000D_ 2) elevated phosphate levels (over 90 %); phosphate limitation by means of JBL PhosEx ultra is often helpful here. _x000D_ 3) too little and too irregular fertilization (there should always be traces of iron at least). _x000D_ 4) insufficient water changes; a weekly water change of over 30 % is recommended for algae problems. _x000D_ 5) not enough fast-growing plants._x000D_
Generally, one should never change plant fertilizers abruptly. The fertilizers from different manufacturers have somewhat different compositions in terms of trace elements. This may cause temporary nutrient changes. It is best to change over in 3 steps: _x000D_ _x000D_ 1) Reduction of the old fertilizer by 1/3; replace this with 1/3 of the new fertilizer. Wait approx. 3-4 weeks and observe the reaction of the plants. _x000D_ _x000D_ 2) Reduction of the old fertilizer by 2/3; replace this with 2/3 of the new fertilizer. Wait approx. 3-4 weeks and observe the reaction of the plants. _x000D_ _x000D_ 3) Complete discontinuation of the old fertilizer and change-over to the new fertilizer. _x000D_ _x000D_ It is important to observe the reaction of plant growth and, in addition, to check the iron content of the water at least 2x weekly. Whereas the value should never drop to 0, it should never exceed 0.2 mg/l if possible. However, short peaks are no cause for concern. _x000D_ _x000D_ These measures should generally be carried out on a weekly basis, ideally right after a water change. This achieves better results than fertilizing in large doses at longer intervals.
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