- Joined
- Mar 6, 2015
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- 500
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- 245
Got an ammonia badge for my 20 gallon quarantine tank. Fish have been in it about 5 days and noticed the color changing a bit so I did a 5 gallon water change. 4 hours later the color hasnt gone completely back yet. My question is do you read it with light shining from the front or I read someone said to shine light from the back which both give you a completely different color, whats the correct way?