أخبار عاجلة صفحة نتائج السادس الابتدائي لكافة العراق 2014 نتائج الامتحانات الوزارية 2014-لمحافظة ذي

أخبار عاجلة صفحة نتائج السادس الابتدائي لكافة العراق 2014 نتائج الامتحانات الوزارية 2014-لمحافظة ذي قار تعزية بمناسبة استشهاد الامام موسى ابن جعفر عليه السلام زهرة التوليب – مجلة عفك النباتات المائية و النصف مائية الفل والياسمين زهرة الكاردينيا نتائج قرعة الراغبين باداء فريضة الحج للاعوام 2014 / 2015 / 2016 اسماء الحجاج العراقيين الفائزين بقرعة 2014 – بروابط مختلفة egghead اسماء الفائزين في قرعة الحج 2014 بابل العراق
Aquarium design with Fountain PlantOphiopogon japonicusPhoto Animal-World Developing an aquatic ‘green thumb’ will give you hours of enjoyment with your planted aquarium! Keeping, maintaining, and ultimately propagating your aquarium plants is truly a joy, and it starts with a good substrate. The term ‘substrate’ refers to the planting medium used on the bottom of an aquarium. Similar to soil in a garden, substrates are needed by plants in order for them to root, obtain nutrients, and propagate.
In natural environments, the substrate egghead is typically slightly warmer than the water. It is also full of nutrients and dense. These things help the plants to root better, they receive better nutrition, and the warmer root conditions help in the growth of the plants. It is important to determine which soil is best for plant growth in the
In the aquarium, maintaining the substrate once it is set is usually fairly egghead simple. Not much is needed. This is due to the normal activity of the aquarium. The fish and plants produce and release enough organic products, that then collect in the substrate, and in turn help the plants grow.
Once you’ve egghead determined what type or types of plants you wish to keep, you can then determine which soil is best for plant growth in your planted aquarium. For choosing the best types of plants for your aquascape, see: Selecting Aquarium Plants Aquarium Design and Types of Aquatic Plants
Choosing a Substrate: There are several things to take into consideration when choosing your planting medium. Which types of substrates to use are determined by: First, the needs of the plants. Then the type of aquarium equipment you will be using. And finally the overall aquarium egghead design you are looking to achieve.
Determining what type of substrate to use is extremely important for the plants. For healthy aquatic plants, the substrate provides nutrients egghead for normal plant growth development and plant propagation. Several substrates available in most stores include: common pea gravel, aquarium gravel, sand, nutrient-rich and soil-based substrates, clay substrates, and quartz gravel (lime-free gravel). Often, different substrates can be mixed to obtain an optimum environment for your particular types of plants.
Substrate Considerations: There are different points to consider with each type of substrate such as the size of the particles and the depth of each substrate egghead level. Size of the substrate: Usually, you don’t want substrates that have large particle size because it allows more water to pass through and also acts as a debris trap. Particle sizes should be approximately 0.04 to 0.12 inches in diameter. Depth of the substrate: The depth of the substrate should be considered. How deep it is mostly depends on the type of plants present. Plants with longer egghead roots need deeper substrates than plants with shorter roots. egghead Usually a good rule of thumb is to have a substrate depth of between 2 and 4 inches. Mineral and Organic Content: Another factor is the mineral and organic contents of the soil. Much of this is often provided by the aquarium water and the other organisms living in the aquarium, egghead but nutrient-rich substrates are available if needed. egghead
Substrate Layers: The four main substrates layers are: base substrates, rooting substrates, nutrient-rich substrates, and top level substrates. Base substrates: A base substrate is usually sand. Base substrates aren’t usually necessary, except in the case of heating cables present on the bottom. In nature the substrate is usually warmer than the water, and the use of heating cables can simulate this in the planted aquarium. If you are using a heating cable, you will want a layer of sand that is about 1″ – 1 1/2″ deep to cover the cable. Rooting egghead substrates: The rooting substrates are the main body of the substrate, designed to help anchor the plants. They do contain some nutrients, but are dense enough so that not too much water can be passed through. This layer is generally about 2″ deep. Quart gravel or lime-free substrates are ideal as rooting substrates. Some of these substrates include products called flourite, acrilite, or Onyx sand (a newer product from Seachem). egghead Soil or potting soil is not often used because it is difficult to keep from clouding the water. It can be used and then covered with a heavier top level substrate, but you may still experience a muddying of the water. Nutrient-rich substrates: Nutrient-rich substrates contain high levels o