Hi I'm new to this forum. I have a 30g aquarium, with 5-guppies a couple fry(fry box)2 long skirt tetra, 2-adf, 8- neons and breeding Kribs(just added last week). It was fully cycled around 8/17/12. So I added 2 more fish, then had a little ammonia spike(.25) then did a partial water change...