(07-01-2016, 12:24 AM)Thor Wrote: You do not need to change the PH of your aquarium water. Messing with aquarium water PH is dangerous for the fish. Just let the fish adopt through accumulation when you first introduce them to your aquarium.
Ammonia should be absolutely 0ppm for all fish species.
You just proved Ram was right. Your idea of hardy fish is none other than who die the last under unfavorable conditions. Debating who usually dies the last is pointless. Why not just provide the ideal conditions so all your fish can live instead of dying one by one within short amount of time?
You do need to change the pH of your water to match what your fish need. Different fish have ideal pH requirements that might not match what comes out of your sink. I've tried distilled water, tap water, and water that has been corrected with drops with varying results.
As for ammonia, yes the be kept to an absolute minimum. But some fish produce more ammonia faster which either means you need a better filter or you'll need to switch or clean the filter more often. At even given time, there is probably going to be some ammonia because one of you fish is going to urinate. But I made the mistake when I got my first fan tailed goldfish of getting a small filter that wasn't cleaning out the water fast enough.
As for the fish I referenced, my mom took care of the tank and most of those fish lasted a couple years. It's just that the angelfish usually died first, then the baja sharks, and then the sucker fish. I had nothing to do with those fish, which is why they lived longer than three days. I don't believe that all fish are created equal, some fish are easier to take care off, some are hardier, and super Sayan hardcore with very specific requirements. Some fish have harder ideal conditions to keep than others. Consider the fact that most people don't start out with salt water fish, heck most Petcos label them for experienced owners because they are harder to keep. Predatory fish can be hard fish to raise if they need live food.
As for hardy fish, it's not just them dying one by one. Some fish have a greater range of adaptability from pH levels, tank types, who you can put them with, and temperature than others. When you're picking out a fish for a kid or a beginner, there are definitely easier fish to have than others.