Toxins in Aquarium water?

Hi, ok I have just set up a fresh water aquarium. The tank has been brought up to temp and filters, heaters, air-ration have been running for 36 hours. I picked up two Pictus Catfish and both died the next day. They were properly acclimated to the tank. A couple days later I picked up a Fiddler Crab and... dead the next day. I know since it's a new tank there is not an established Nitrogen cycle going yet, but I have been testing the waters pH, Ammonia, Nitrite and Nitrate levels and they are all at zero PPM. The pH level is at 7.4. What is going on here? is there something toxic in our water that does not affect the test I performed? We are on a well so there should be no chemicals that tap water will have. Please help if you can Thanks, Tom.

What to do? Problems with TI-84 Plus Silver Edition Calculator?

Make sure that you're calculator is set in degree mode. Radians are a different form of numbers equivalent to degrees that are used in upper level math courses. Put your calculator in degree mode, and you should get the right answer of 10.86848265 degrees. Hope that helps!

Does pune station have cloak room facility.?

I need to keep 3 suitcases in pune railway station for a day. Is there any facility of doing so. In case you know kindly let me know.

Are steroids illegal?

With the recent confession of Mark McGuire, there seems to be a lot of opinions but no facts to back it up. I understand that most sports have banned performance enhancing drugs and steroids. But weren't steroids an illegal drug before that? My question is if and when steroids became an illegal substance. Not when they were banned from a particular sport. I also know that they are prescribed for certain conditions. Just curious about the legality of them as a leisure drug. Thanks!

Do you ever pop in Eye of the Tiger, turn it up real loud and get ready to go on an question rampage...?

Nah I prefer a little Ramstein...gets me in the mood for what "Answers" I have for you ....ROOOAAAARRRRR!!!!!

Indefinite integrals.?

The indefinite integral of x^n dx is just (1 / (n + 1))*x^(n + 1) + C, where C is a generic constant. For example, the integral of x^3 dx is (1/4)*x^4 + C. Integrals can be linearally combined. So, for example, the integral of (5x^2 + 2x) dx would be 5*(1/3)*x^3 + 2*(1/2)*x^2 + C = (5/3)*x^3 + x^2 + C. That should enable you to solve a), b), and c) easily. For d), perform the multiplication before you integrate.

Sanford and son..which episode Grady watches lamont while Fred gos out of town to St louis.?

and nearly shoots him..in one scene..which season is it..also where fred and Aunt Esta,are chained together and what season is that one..i love those shows..and wanna buy it.