In one sentence, describe what the following article is about: Counting is an important skill in any language, so start by learning the numbers one through twenty in Dutch. Een: One (pronounced "ain") Twee: Two (pronounced "tway") Drie: Three (pronounced "dree") Vier: Four (pronounced "veer") Vijf: Five (pronounced "vayf") Zes: Six (pronounced "zehs") Zeven: Seven (pronounced "zay-vuhn") Acht: Eight (pronounced "ahgt") Negen: Nine (pronounced "nay-guhn") Tien: Ten (pronounced "teen") Elf: Eleven ( pronounced "elf") Twaalf: Twelve (pronounced "twahlf") Dertien: Thirteen (pronounced "dehr-teen") Veertien: Fourteen (pronounced "vayr-teen") Vijftien: Fifteen (pronounced "vayf-teen") Zestien: Sixteen (pronounced "zehs-teen") Zeventien: Seventeen (pronounced "zay-vuhn-teen") Achttien: Eighteen (pronounced "ahgt-teen") Negentien: Nineteen (pronounced "nay-guhn-teen") Twintig: Twenty (pronounced "twin-tuhg") Some more useful vocabulary to get you started includes the days of the week and months of the year. Days of the week: Monday = Maandag (pronounced "mahn-dahg") Tuesday = Dinsdag (pronounced "dinss-dahg") Wednesday = Woensdag (pronounced "woons-dahg") Thursday = Donderdag (pronounced "don-duhr-dahg") Friday = Vrijdag (pronounced "vray-dahg") Saturday = Zaterdag (pronounced "zah-tuhr-dahg") Sunday = Zondag (pronounced "zon-dahg") Months of the year: January = Januari (pronounced "jahn-uu-ar-ree"), February = Februari (pronounced "fay-bruu-ah-ree"), March = Maart (pronounced "mahrt"), April = April (pronounced "ah-pril"), May = Mei (pronounced "may"), June = Juni (pronounced "yuu-nee"), July = Juli (pronounced "yuu-lee"), August = Augustus (pronounced "ow-ghus-tus"), September = September (pronounced "sep-tem-buhr"), October = Oktober (pronounced "ock-tow-buhr"), November = November (pronounced "no-vem-buhr"), December = December (pronounced "day-sem-buhr"). Learning the Dutch words for the different colors is a good way to build up your descriptive vocabulary. Red = rood (pronounced "rowt") Orange = oranje (pronounced "oh-rahn-yuh") Yellow = geel (pronounced "ghayl") Green = groen (pronounced "ghroon") Blue = blauw (pronounced "blaw") Purple = paars (pronounced "pahrs") or purper (pronounced "puhr-puhr") Pink = roze (pronounced "row-zah") White = wit (pronounced "whit") Black = zwart (pronounced "zwahrt") Brown = bruin (pronounced "bruyn") Grey = grijs (pronounced "greys") Silver = zilver (pronounced "zil-fer") Gold = goud (pronounced "howt") Adding a few key words to your vocabulary can make a huge difference to your Dutch conversation skills. Hello = Hallo (pronounced "hah-low") Goodbye = Tot ziens (pronounced "toht seens") Please = Alstublieft (pronounced "ahl-stuu-bleeft") Thank you = Dank u wel (formal, pronounced "dahnk-ew-vehl") or dank je wel (informal, pronounced "dahnk-yuh-vehl") Yes = Ja (pronounced "yah") No = Nee (pronounced "nay") Help = Help (pronounced "hehlp") Now = Nu (pronounced "nuu") Later = Later (pronounced "lah-tuhr") Today = Vandaag (pronounced "vahn-dahg") Tomorrow = Morgen (pronounced "more-ghun") Left = Links (pronounced "links") Right = Rechts (pronounced "reghts") Straight ahead = Rechtdoor (pronounced "regh-dore") Next it's time to move on to to some useful, everyday phrases which will help you to navigate basic social interactions. How are you? = Hoe maakt u het? (formal, pronounced "hoo mahkt uu hut") or Hoe gaat het? (informal, pronounced "hoo gaht hut?") Fine, thank you = Goed, dank u (formal, pronounced "goot dahnk uu") or Goed, dank je (pronounced "goot dahnk yuh") Nice to meet you = Aangenaam kennis te maken (pronounced "ahn-guh-nahm keh-nis tuh mah-kun") I can't speak Dutch well = Ik spreek niet goed Nederlands (pronounced "ick sprayk neet goot nay-dur-lahnts) Do you speak English? = Spreekt u Engels? (pronounced "spraykt uu eng-uls") I don't understand = Ik begrijp het niet (pronounced "ick buh-grayp hut neet") You are welcome = Graag gedaan (pronounced "grahg guh-dahn") How much does this cost? = Hoeveel kost dit? (pronounced "hoo-vale kost dit")
Summary: Learn how to count. Learn the days of the week and the months of the year. Learn the colors. Learn some useful words. Learn some useful phrases.

In one sentence, describe what the following article is about: Dissolve 1 teaspoon per 1 gallon (4 L) of water in a small amount of tank water separately and then add the mixture to the tank. Leave the salt in the freshwater aquarium for 10 days. Salt disrupts the fluid regulation of ich and also helps develop your fish's natural mucous or slime coats to protect it from ich parasites. Combine salt with heat to further effectively kill off ich. Use aquarium salt that is specifically design for fish and not table salt which is not iodine-free. Never use medication along with salt and heat as the salt and medication can react and restrict oxygen within the tank. Change 25% of the tank water every few days and only add the correct amount of salt to water taken out. However, if the treatment is over, do partial water changes but don't add anymore salt. Partially changing the water everyday can help remove some trophonts and tomites from the tank and also add oxygen to the water. Be sure to use treated water so the extra chlorine won't stress your fish or agitate your fish's wounds. If water changes stress your fish, decrease the amount of water or frequency that you change.
Summary:
Use aquarium salt to treat ich in freshwater aquariums. Do 25% daily partial water changes.