JBL CoolControl for Cooling fan

JBL FerroTabs - Plant fertiliser for freshwater aquariums Primary care for vigorous plant growth: fertiliser tablets for freshwater aquariums Vigorous plant growth, no deficiency symptoms thanks to minerals such as iron, potassium and other trace elements Optimal, intensive leaf colouring thanks to ideal iron concentration Optimal promotion of plant growth means less algae growth. No phosphates and nitrates Package contents: 1 packet FerroTabs, 30 tablets. Use: 1 tablet/25 l water every 14 days Nutrition for aquarium plantsHealthy plants prevent algae growth. Healthy plants prevent algae growth, supply oxygen, remove pollutants, offer hiding places and reduce pathogens. Heatlhy plants = healthy fishFor the plants to flourish the the following demands have to be met:Light as an energy source for CO2 photosynthesis, nutrients and trace elements as growth promoters. JBL fertilisers supply the plants with all main nutrients and essential trace elements. This way the plants can absorb all the required nutrients they need over the leaves and roots, and deficiency symptoms (e.g. iron deficiency) are thus prevented

Invitro aquarium plant Rotala rotundifoliaColorful stem plant for the background Rotala rotundifolia is one of the most popular stem plants in the aquarium hobby - versatile, easy to care for and particularly attractive thanks to its delicate, round leaves. Depending on the light intensity and nutrient supply, it develops a vibrant green to bright red, adding lively color accents to any aquarium layout. The in vitro version is grown under sterile conditions and is therefore free from algae, snails and pesticides - ideal for sensitive aquariums, especially shrimp tanks. Fast-growing and adaptable, Rotala rotundifolia is ideal for the mid to background and harmonizes wonderfully with other fine stem plants in the natural aquarium. Advantages at a glance: ✅ Changes color depending on the light - from green to red ✅ Fast-growing & ideal for dense groups of plants ✅ InVitro - guaranteed free from harmful substances & snails ✅ Safe for shrimps & sensitive tanks ✅ Perfect for aquascaping & classic plant aquariumsProduct details: Name: Rotala rotundifolia Type: Stem plant Position in aquarium: Middle to background Growth height: approx. 30-50 cm Light requirement: Medium to high CO₂ supply: Recommended for more intense colorationTemperature: 22 - 28°C Delivery form: In vitro cup (grown sterile) Color effect: Green to reddish, depending on light & nutrients

JBL PROTEMP - External heater for freshwater aquariums In-line heater integrated into the hose of the external aquarium filter, removing the need for a heater INSIDE an Aquarium Easy installation: cut through the hose from the external filter that feeds the water back into the aquarium, insert the external heater in between, insert the plug and set the water temperature you want This integration in the filter circuit ensures a very even distribution of the water temperature with an accuracy of +/- 0.5 °C in the aquarium LED display of the current and desired temperature. Interchangeable hose connections for 12/16, 16/22, and 19/25 mm with hose locks. Total length: 30.5 cm Package contents:e 300 = 1 in-line heater 300 W for aquariums from 90-300 l (80-120 cm) with hose connections for 12/16, 16/22 and 19/25 mm and cleaning brushe 500 = 1 in-line heater 500 W for aquariums from 160-600 l (100-150 cm) with hose connections for 12/16, 16/22 and 19/25 mm and cleaning brush Most aquarium fish come from tropical waters and need water temperatures between 22 and 30 °C. In community aquariums with fish/invertebrates from different regions, a water temperature of 24-26 °C has shown to be effective. 30 °C is only suitable for some fish breeding (e.g. discus fish). Many shrimp species come from cooler waters and do not tolerate temperatures of 25-30°C. The water temperature should be set with a "regulated heater" which regulates the temperature automatically. For this purpose, there are rod-shaped heaters which are fixed in the aquarium (JBL ProTemp s) in various wattage and external heaters/in-line heaters which are integrated in the water-returning hose of an external filter (JBL ProTemp e) in two wattage. The advantage of external heaters is that it is one less product to be placed INSIDE the aquarium and the distribution of heat in the aquarium is more even. In addition, the digital display of the external heater always clearly shows the current water temperature. Under gravel heating is NOT used to set the water temperature. An under gravel heating cable ensures a better flow of water through the substrate of the aquarium, as the heated water at the heating cable rises and colder water flows into the areas between the heating cables. Thus, nutrients are flushed to the plant roots and ensure optimal plant growth. Under gravel heating cables must always be supplemented by a "main heater" (JBL ProTemp s or e).