goldfish questions

I got 2 Goldfish on 11.11.23. Set up a tank with filter and air pump. However I saw maybe blood. Water test was done, all nitrites, nitrates , ammonia, chlorine is safe. Except pH is 6.3. water used is soft water. I bought pH+ , still on way. Please guide what is the issue and also confirm...

I got 2 goldfish from my neighbors maybe a month ago. They had ammonia burns so ive been doing water changes near daily. One of the fish, Kaneki, was totally silver but after changing his food and all the water changes he has started to get orange. He has an orange spot on his side, his mouth is...

Hello guys! I want to, eventually, sell my 11g for a 29g. I want to stock it with however many black goldfish would fit inside. You know, the ones with the really big eyes?? I used to have one as a child and I want another sooo bad. Of course- I would wait until my current fish children...