Isopropyl alcohol is often used in DNA extraction. It is added to a DNA solution in order to precipitate the DNA into a 'pellet' after centrifuging the DNA. This is possible because DNA is insoluble in isopropyl alcohol.
Four-lamp T5 light fixtures are great for mixed reef systems with soft and stony corals. Six-lamp or eight-lamp T5 fluorescent light fixtures are capable of sustaining higher light demanding SPS corals in reef aquariums with the proper reflectors using a combination of proper spectrum T5 aquarium light bulbs.5 Aquarium Light: Great for reef tanks and freshwater aquariums alike [Click here for more info.]. High output T5 aquarium light is a popular and versatile choice for illuminating your fish tank.
Part 2 Housing Tiger Barbs Correctly. 1. Keep tiger barbs in the proper size aquarium. A 20 gallon aquarium (75 Liters) is the very bare minimum for six tiger barbs (the larger the aquarium the better.) Also do be aware! You should not keep tiger barbs in a group less than six. They are aggressive fish which if kept in a smaller group or smaller aquarium size then, they will become a lot more aggressive to tank mates. Get a heater. Since tiger barbs are tropical fish they should be kept in an aquarium at least 70*F-78*F.