ammonia spike

I need some help from smarter people than I. I have a 29-gallon tank that I recently took all the gravel out of and put Caribsea Super Naturals Aquarium Sand (dry) into. I read both options of rinsing and not rinsing but determined that rinsing was the better option after some research. I...

I woke up today to the filter on my 15 gallon shrimp and otocinclus tank not working, and about 20 of my red cherry shrimp dead or dying. I immediately removed all of the dead shrimp I could find and did two 80% water changes (dosing with prime) and added media from another filter to this one. I...