SKU: 93050082943

Seachem Alert Combo Pack

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Description

Seachem Alert Combo PackSeachem Alert Combo Pack The Alert Combo pack combines Ammonia Alert (1 card) and pH Alert (1 card). Ammonia Alert and pH Alert are almost half the size of competing products. At 1. 5" x 2. 5", they are small, clear, and unobtrusive, so they won't detract from the view of your aquarium. Simply place Ammonia Alert and pH Alert visibly anywhere in the aquarium or filter. Its that easy. No chemicals or test procedures are required. Ammonia Alert Ammonia

Seachem Alert Combo Pack

The Alert Combo™ pack combines Ammonia Alert® (1 card) and pH Alert® (1 card). Ammonia Alert® and pH Alert® are almost half the size of competing products. At 1.5" x 2.5", they are small, clear, and unobtrusive, so they won't detract from the view of your aquarium. Simply place Ammonia Alert® and pH Alert® visibly anywhere in the aquarium or filter. It’s that easy. No chemicals or test procedures are required.

Ammonia Alert

Ammonia Alert's® sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. It detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 killer before any sign of stress. The presence of the free ammonia is detectable continuously with a response time of about 15 minutes. Response to decreasing ammonia is slower, requiring about 4 hours to go from TOXIC to SAFE on removal of ammonia. Marine or freshwater use.

pH Alert

pH Alert® is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A sensor changes color reversibly from yellow to orange to red alerting you to shifts in pH levels between 5.4 and 8.0. When first put in service, pH Alert® response time will be about 30 minutes. Thereafter, pH shifts will register within ten minutes. Freshwater use only.

Ammonia Alert

Interpretation
Safe
<0.02 mg/L

No action required

Alert
0.05 mg/L

Tolerated for 3-5 days. Monitor and consider a water change soon.

Alarm
0.2 mg/L

Tolerated for 1-3 days. Perform a water change soon.

Toxic
0.5 mg/L

Perform water change or treat with AmGuard™ for emergency ammonia removal

Care

No care is required beyond removing algae with a clean, soft material. Avoid touching the sensor with fingers, since skin oils can damage it. Do not use bleach, soap, detergents or hard objects to clean the sensor. Some dye medications may discolor the sensor. Sensitivity improves with age, provided the unit is not allowed to dry out, however, drying does not permanently impair the unit. For maximum sensitivity, the unit should be read under natural daylight or daylight simulating light. Red enhancing light minimizes green and blue hues, decreasing the apparent sensitivity of the unit.

To ensure Ammonia Alert® is functioning properly, the response of the unit may be checked by holding it briefly over the mouth of an ammonia bottle (e.g. Windex glass cleaner): color should develop rapidly.

pH Alert

Care

No care is required beyond removing algae with a clean, soft material. Do not use bleach, soap, detergents or hard objects to clean the sensor. Some dye medications may discolor the sensor. For maximum sensitivity, the unit should be read under natural daylight or daylight simulating light.

Sensor exhaustion is indicated by a visible fading or washing out of sensor color. Once exhausted, it is time to replace pH Alert®

Shipping Notes
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Exchange/Return Notes
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SKU: 93050082943

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4.4 ★★★★★
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Roman P.
Los Angeles, US
★★★★★ 5
Colonialism not dead yet
This is a review of the 2004 Grove paperback edition of Frantz Fanon’s The Wretched of the Earth The Wretched of the Earth is the most famous work of Algerian revolutionary Franz Fanon (1925-1961) finished and published shortly before his death (he died of leukemia). Fanon is known above all as a theorist of revolutionary violence and a champion of its therapeutic good for the oppressed. However, this book is not about armed struggle only; it covers many other topics: theory of class conflict in colonies, revolutionary process and subjects of social change in the Third World, the future of new independent states (former colonies), strategies of building Third World—First World relations in a right way, the relationship between the struggle for national culture and national liberation struggles, consequences of colonialism for both the colonizer and the colonized, etc. It’s a book of an angry man; the author's revolutionary pathos and standing with the oppressed (‘the wretched of the earth’) are noticeable. Though Fanon wrote his book drawing on the experience of the Africa of the 1950s an acute reader can easily notice similarities and parallels with what’s going on in the underdeveloped countries all over the world. The book can be of particular use for anthropologists, historians, philosophers, sociologists, as well as for those interested in cultural studies. I prefer Richard Philcox’s translation to the one published in 1963. Citizens of the global South can skip Jean-Paul Sartre’s preface; let the author speak for himself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2019
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R. Schwenk
Belleville, US
★★★★★ 4
Influential and Insightful
Frantz Fanon's The Wretched of the Earth is an important document in the history of imperialism capturing the state of the Algerian revolution and the struggle for independence in the Third World at a crucial time. The year was 1961, and the book was published just before Fanon's premature death. Algeria was a year away from independence. The Congo had just achieved a travesty of independence. The Cuban revolution was still fresh. Fanon was born in Martinique but was fully committed to the Algerian cause by the end of his life. His insights into the pitfalls threatening newly-independent nations have proved to be uncannily accurate. His voice is of his time and ahead of his time. I would recommend this book to those wanting to learn more about the Algerian War and to those curious about the huge effect of this book on the leftists of the 1960s.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2013
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padre viejo
Natrona Heights, US
★★★★★ 5
A SIXTIES CLASSIC WE HAVE MOVED ON FROM OR BACK OF/
Format: Paperback
i am 90 years old. i was a student in the 60s but i had already served in the military so i was already in my 30s. Which meant with a wife and twins i was more concerned with earning a living and finishing my doctorate than participating BUT it was a time when we swung one way as a nation and we were part of the post war swing of the world. The world had developed empires, WW1 began their downfall, ww2 pretty much finished the rest BUT it opened the door for new imperialism. On one hand colonialism melted away. The greatest empire ever, the British faded to legend and an island itself breaking up. American imperialism sprouted along with Soviet. And now China and Russia. One old model, Russia, one new model China. But the world i cyclical not progressive so China may become another imperial power. Fanon is an antidote as are other writers of the 60s so good to see new editions. Many rebels are now out of print. History is always ignored but it is always present.
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Reviewed in the United States on July 12, 2022
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Verified Purchase
Ra Shemsu Heru Drakes
Natrona Heights, US
★★★★★ 5
An Important Text for All Those Engaged in The Struggle
Format: Paperback
The type of text that can bring about a breakthrough in consciousness, it places world affairs in perspective for the seeker of an authentic African consciousness.
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Reviewed in the United States on May 19, 2025
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Verified Purchase
Houston
San Leandro, US
★★★★★ 5
Brings history to life
Format: Paperback
Got this book as a read aloud before traveling to London. We did a tour of the Tower of London and used the map in this book, marking off the different parts we walked theough- talking about which parts were the setting of different scenes in the book. Reading this gave my kids a real love and personal connection to the Tower. Cliffhanger endings to different chapters. My 9 and 6 year old lived it. My 4 year old couldn't keep up.
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Reviewed in the United States on October 21, 2024

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