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The green color of algae derives from the dominance of chlorophyll as a photosynthetic pigment. The other colours of many algae do not mean that they lack chlorophyll but that the chlorophyll is masked. These algae have accessory photosynthetic pigments which conceal the green color of chlorophyll. Aqatic plants such as Rhodophyta contains the pigment phycobilin, giving it a red color while the group Chrysophaceae contains the pigment fucoxanthin which gives them a golden color, as aquatic plant.

Algae come in a variety of shapes and in varied colours due to their different photosynthetic pigments. Algae can be unicellular and microscopic or colonial forming plate-like colonies, thread-like filaments, net-like tubes, or hollow balls. Many plankton algae species bear horns, ridges or wings to increase their surface area to volume ratio which not only increases their ability to obtain scarce nutrients from the environment, but also protects them from herbivores. Some multi cellular brown algae form branched filaments or foliose plants many meters long with complex anatomy for aquatic plant. Individual diatoms range in size from 2 microns to several millimeters, although there are only a few species that are larger than 200 microns. Some algae, like diatoms, are encased in a siliceous cell wall which takes the form of a box and comes in many unique and beautiful forms.

Reproduction in algae is either sexual or asexual as for much aquatic plant. Cyan bacteria only reproduce asexually, with genetic recombination accomplished through transformation or conjugation. During transformation DNA, released from donor cells, is incorporated into recipient cells. Conjugation is the process by which two cells become connected by a narrow tube, through which DNA moves from one cell into the other. Other algal groups use various sexual or asexual methods which are fairly group specific, but some features are shared. When reproducing asexually most groups develop spores within a parent cell which are released into the environment. Each of these spores develops into a single algal cell or they divide mitotic ally into numerous cells. For example, reproduction in the crypto monads is asexual and primarily via longitudinal cell division with the cell dividing in either a free-swimming or no motile condition. Sexual reproduction is not rare but occurs less often than asexual reproduction. Gametes are produced in different algal cells and released into the environment. Male gametes usually attach themselves to female gametes and their genetic material is absorbed through the cell coat of the female. In freshwater species, this is followed by the formation of a cyst in which meiosis takes place. More details on the specifics of reproduction are provided in the discussions on each algal group from aquatic plants.

Aquatic plants — also called hydrophytes plants or hydrophytes — are plants that have adapted to living in or on aquatic environments. Because living on or under the water surface requires numerous special adaptations, aquatic plants can only grow in water or permanently saturated soil. Aquatic vascular plants can be ferns or angiosperms (from both monocot and dicot families). Lake seaweeds are not vascular plants however navy alga, and therefore not typically in the category, "water plant". In contrast to plants does not type have a problem in stop water like for example mesophytes and xerophytes, hydrophytes on the basis of the abundance of the water in its environment? This means, has must regulate that the plant fewer perspiration (actually, the regulation of the perspiration more energy require would become, than the possible closed advantages. For example a species of the butter flower (species Ranunculus) swimmer that becomes something in water undertones respect; only the flowers expand over the water. Your leaves and roots are helps long and thin and almost hair similar; this expansion the mass of the plant over a wide zone, making it chip stronger. The long roots and thinned leaves also furnish a larger area for view done of mineral solutes and oxygen. The weight of the plants distributes the wide flat leaves of irrigated lily (family Nymphaeaceae) aid over a large zone that helps consequently them to float nearly the water surface. Many fish attendants and aquariums handicraft enthusiast retain water plant in its tank, the water for aquatic plant.

Vallisneria is known into the aquarium hobby for rather some years significantly become that that tried usually aquarists it out of in its own tank at a conscience time. Vallisneria species is usual resistant plants and therefore some of them are really suitably for the beginner. However, a couple of the new Vallisneria is different of the traditional types and consequently, interesting for the specialist also. In this article, we will review the entire group however with stress on Vallisneria nana and Vallisneria Americana "minus swindler", that are that Vallisneria two new of Tropica with uses new possible totally in the aquarium with aquatic plants.

Vallisneria is not confused easily with other aquariums plant apart perhaps of Sagittaria, that some of the morphological marks divides. Vallisneria has formed strap leaves and expansion through runner. However, the leaves change considerably from species to species and even from variety to interesting and suitably for different uses in the aquarium. The color of the leaves changes is found of dark green to dark red colors however the largest variation in the leaf morphology and the maximal size of the plant. The maximal length changes of less than 10 cm to several feet and of teeter to very wide leaves. The last is very resistant and is used formed offer often in Cichlid aquariums while the smaller types can be used for foreground or middle ground purposes, where the strap forms and that sometimes spiral leaves of other leaf shape a good contrast in the aquarium.