In one sentence, describe what the following article is about: Baking soda can reduce the amount of oil in your hair and neutralize odors. In a bowl or glass, mix 1/4 cup of baking soda and 3/4 cup of water.  It will form a paste.  (Double these amounts if your hair is past your shoulders.) Wet your hair, and apply the baking soda and water mixture. Leave it in for about five minutes, and then wash your hair with shampoo.  Do this about once a week. Apply rose water directly onto your hair. Massage the rose water into your scalp. Let it soak in for 20 minutes, then wash your hair as you normally would. The rose water will leave a lingering scent of roses. Rose water can be drying, so use it sparingly. Lemons are great for making your hair smell fresh, and they also fight dandruff.  Shampoo your hair first. Squeeze two fresh lemons into 1 cup of water, and then massage the juice into your hair.  Let it soak for up to ten minutes. Be sure to condition afterwards so that the juice doesn't dry your hair out.   Lemon juice is astringent and may dry out your hair. Beware that lemon juice also tends to lighten your hair and bring out highlights, especially if you go out in the sun with it still in. You can also add an essential oil to the lemon-water mixture, but it's not necessary since lemons already have a very strong smell.
Summary: Make a baking soda rinse. Use rose water. Make a rinse out of lemons.

In Spanish, the present perfect form of ser describes a state of being that existed in the past, and might occur again in the future. The present perfect tense is used more in Spain than in Latin America. Make the present perfect using the present indicative form of the verb haber with the past participle of ser, which is "sido." For example, you might say, "He sido rico" to mean "I have been rich." The past perfect, or pluperfect, tense of ser describes a state of being that existed before another state of being in the past. For pluperfect, use the imperfect conjugation for haber plus the past participle sido. For example, you might say, "Había sido pobre durante la infancia" to mean "She had been poor during childhood." The Spanish preterite tense is used to talk about states of being that occurred entirely in the past. Conjugate ser in this tense if someone was a certain way in the past, but is no longer that way. For example, you might say, "Fui rico" to mean "I was rich."   Yo fui: I was  Tú fuiste: You were  Él/ella/usted fue: He/she/you was/were  Nosotros/-as fuimos: We were  Vosotros/-as fuisteis: You all were  Ellos/ellas/ustedes fueron: They/you all were In Spanish, the imperfect tense is used to discuss what someone was doing when they were interrupted or to describe past habitual actions. For example, you might say, "yo era pobre" to mean "I used to be poor."   Yo era: I used to be.  Tú eras: You used to be  Él/ella/usted era: He/she/you used to be  Nosotros/-as éramos: We used to be  Vosotros/-as erais: You all used to be  Ellos/ellas/ustedes eran: They/you all used to be Even though "ser" is an irregular verb, it is conjugated using the regular rules that apply to all -er verbs for the conditional and future tenses.  Conditional indicative is used to talk about a state of being that definitely will be true, as long as another condition is true. For example, you might say, "Yo sería rico si vendiera" to mean "I would be rich if I sold this product." The future indicative form is used for a state of being that will definitely exist in the future. For example, you might say, "Seré casado" to mean "I will be married."
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One-sentence summary -- Combine the correct conjugation of "haber" with "sido" for perfect tenses. Learn ser in the preterite indicative tense. Try the imperfect indicative for actions with no end. Use regular conjugation rules for conditional and future tenses.

Problem: Article: Many betta like to hear their person's voice. You may notice that your betta swims more actively when you talk to the tank. You can also move your finger around on the glass of the tank, or wiggle it at the surface of the water. He will try to jump toward it. Just be careful not to let him jump out of the tank. Betta fish are curious fish, and they like to play! He or she might follow you around the room when you walk around too. Having different decorations that you switch out at different times give your betta more of a variety of things to look at, and will keep his life enriched. If it is female, it MAY like the company of two or three other female betta fish. It is recommended to have more than two so they won't fight constantly if they are aggressive to one another. This is called a “female betta sorority tank.” Be prepared, however, to keep them in separate tanks if they do not get along. Male bettas most definitely CANNOT live with other male bettas. They will attack each other, which is why bettas are nicknamed “Siamese fighting fish.” A male betta can be in a tank with a female betta for breeding purposes, but you should leave this to professional aquarium breeders, or when you get more experienced with fish-keeping. Again, some betta, male or female, will never get along with others in the tank. Suggested possible tank mates for betta are apple snails, ghost shrimp, red cherry shrimp, African dwarf frogs, cory catfish, and neon tetras. If you do introduce other fish or animals to the tank, you’ll need to keep a careful eye on them. Signs include damaged fins or bodies in the other fish or water animals. You may not always see the betta attacking, but keeping a careful eye on the health of the other fish or animals in the tank is necessary. Do they look hurt? Are any of them hiding constantly? These could be signs that the betta is being aggressive toward them, and you should separate the betta for the well-being of your other fish or water animals in the tank. If you do not have a tank divider or a separate tank ready, then try adding more decorations to provide hiding places for the victims and ease for the aggressor. Treat the hurt fish first. Make sure to avoid colorful, aggressive and fish with long fins such as guppies as tank mates. Also, while neon tetras are usually okay, some other types of tetra are “fin nippers” (such as serpae tetras) so be sure to research what type you’re thinking of getting if you want to get tetras as company for your betta.
Summary:
Talk to your Betta. Move around his decorations or buy him new ones. Decide if you should introduce another betta fish for your betta. Carefully bring in some "company" to pal with the betta fish. Watch for signs of not getting along.