Promotes coral growth
Solar Marin Blue promotes coral growth in marine aquariums. In addition it is the ideal night lighting for nocturnal animals. Combined with Solar Marin Day, it is the ideal lighting for marine aquariums.
JBL Solar tubes: My two new tubes don't "glow". Is that due to a production error?
We can exclude the possibility of a production error. If a light doesn't turn on, that is an unfortunate exception.
If you have a light bar with conventional electronic ballasts, I would recommend changing the starters once to see if they are causing the problem. Does the defective tube glow when you change the tubes on the light bar ? And the other one doesn't ? Then there is a defect in the light bar.
What do the hours of service life indicated for the fluorescent tubes mean ?
Our tubes are not tri-band tubes, but instead, are modern full-spectrum tubes.
If there is a loss of luminance, the operating conditions must definitely be checked. T8 tubes have the longest service life with the least losses at 25 °C ambient temperature, whereas the T5 tubes have the lowest at 35 °C ambient temperature. Most of the closed covers have ambient temperatures that are higher than 25 °C. Generalising data of 8,000 or 10,000 hours of service life should generally be treated with caution, as this data applies to optimised operating conditions.
After I installed new tubes, algae started growing in my tank.
If algae start growing after tube replacement (especially if all of the tubes were replaced at the same time), there are two potential causes:
1) An increase in light due to the new tubes:
Although plants can react to increased amounts of light quickly, plant fertilization must also be adjusted accordingly. A lot of light means stronger plant growth, which in turn results in an increase in the plants' nutrient requirements in terms of CO₂ and trace elements. This applies all the more when reflectors are used additionally above the tubes.
2) Changes in the light spectrum:
Depending on the tubes used previously, installing new tubes can result in a changed spectrum of light. The plants then have to adapt to the new spectrum with their light-harvesting pigments (this does not just refer to chlorophyll, but instead, to so-called accessory pigments as well). This process may take anywhere from a few days to around two weeks. Accordingly, when tubes with a different spectrum are installed, most plants react with a short-term stagnation in growth.
Therefore, it is often advisable not to replace the tubes all at once and instead, to replace one tube at a time at two-week intervals.
Based on our own experience in customer service and the many messages and questions we receive, we have put together the typical mistakes beginners may make. The experienced aquarist might well smile, but if they are honest, these are mistakes we all made at the start, aren’t they?
On the JBL expeditions the lux values were measured in various parts of the world, both over and under water, by means of lux meters. As a comparison the JBL research department determined the underwater values in aquariums.
Wenn wir Aquarianer eine Leuchtstoffröhre kaufen möchten, aber nur die Wattstärke wissen, sind wir, zumindest bei T5 Röhren ratlos. Zum Beispiel gibt es die 54 W T5 Röhre in 1047, 1150 und in 1200 mm Länge.
To find out the specific illumination intensity in your aquarium. Light - the motor of photosynthesis – is, along with the water parameters and the type and quantity of planting, also of crucial importance for plant growth.