Kan komma med fakta från tillverkare ist. · Maintain sufficient water flow through the BioPellets, to prevent production of hydrogen sulfide gas. · The use of ozone and UV will negatively affect bacterial recruitment of the BioPellets and increase the maturation time of the filter. In addition, bacteria which are released from the pellet filter and are not skimmed off before they are released in the main tank, could release their nitrogen and phosphate rich content as a result of bacterial cell death, thus reducing the effectiveness of the pellets. UV, Ozon, sponges or any other systems that will block or inhibit the rapid skimming of bacteria can have this effect. · When nitrate levels are high this can result in a bacterial bloom of a couple of days which can negatively effect oxygen levels in your tank. This can be reduced by slowly adding/increasing the BioPellet content of your filter and allow proper aeration of your tank. · When nitrate and phosphate are already very low before applying BioPellets, a decrease in these levels may not be detectable with standard aquarium testkits. · We also suggest placing the outlet of the pellet filter in front of a protein skimmer, to limit the amount of bacteria entering the system. This has the additional benefit of increased gas exchange (CO2-removal and O2-addition). The pellets should never be used without sufficient aeration, as this may lead to low oxygen and pH levels, especially during night time. Proper aeration can be established with air pumps and protein skimmers. Sett många på forumet som verkar kört/köra med både ozon&uv...Väldigt märkligt då man borde veta dessa basic saker innan man kastar in en produkt som bp