Hey sorry for late update, so tested water and ammonia and nitrites processed down to 0, nitrates still a nice red so went ahead and did an 75% water change and dosed prime this time.mattgirl said:My thought exactly. Once I started using it I just stuck with it. It takes so much less of it than the one I had used for years.
Be sure to wait the full 24 hours. The ammonia will probably go down to zero sooner than that but we want to make sure the nitrites have too. As you have discovered, it normally takes them longer to go down. I would hate for you to see purple and freak out.
Turn the heater off now and let the water start cooling down. I don't know that it makes a bit of difference but to err on the safe side I wouldn't want to drop the tanks temp instantly from 84 to 76. I consider the bacteria a living thing. I don't know that there is such a thing as temp shock for it but I wouldn't take the chance. I wish I had thought to mention this yesterday but never too late.
Zerba danios are great little fish. I love their activity level. I probably wouldn't start with a dozen but I'd have no problem starting with 8. Another one I like are pearl danios. They get a bit bigger than the zebras. When you first see them they look fairly plain but as they get comfortable and start growing you will start seeing their colors start to shimmer and the orange stripe on their back becomes more prominent. Again, I would start with 8 in this size tank.
Will do a full test tomorrow morning before going to the LFS to check all levels once again (particularly the nitrates).
Tomorrow may hopefully be fish day, let's see whats in store