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:D The nitrite has appeared! :D Thanks, Wendy

We got tiger barbs for our tank since our school mascot is the tiger. They killed everything. I posted here for suggestions and tried them in out 55 gallon but eventually had to put them in a 20 gallon tank by themselves. Just my experience with kids watchong the blood and gore!

All excellent ideas, THANK YOU keep them coming. Lithril, the principal requested nothing with teeth :( However, I think it would help get kids in line!! :D :D :D :D :D THANKS :) :) :) :) :) :)

My colleagues and I are establishing tanks in our classrooms for educational experiences. We are looking for suggestions. Our students are grades 8-12, in other words 13 year-olds to 18 year-olds. In math class, we are doing a fishless cylce and graphing/recording data from our ammonia and...

Howdy! We are still not picking up nitrites, but I feel we are close. I brought in a sponge from my filter at home. Does anyone think that fact we are not here on weekends to add ammonia we are prolonging the cycling? The bubble wands and filter continue to run, of course. Thanks :)

Thanks Alien Anna. I believe I got the articles from one of your earlier posts. I am bringing in some gravel from home. Thanks :D

Okay, I am trying to do a fishless cycle. I am doing it in my math class. My objective was to have my class measure the water, test the water and graph the results. That way we could see the ammonia and nitrite spike. And it gave me an excuse to have fish in school!!! I have a ten gallon...