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I struck my own curiosity with another post I created earlier.

I LOVE fancy goldfish and I really like White Cloud Mountain Minnows and Danios of many sorts.

Instead of getting 2 fancies, is there a possibility of having a tank with a school of danios or minnows and 1 fancy goldfish? Would the Goldfish eat the smaller ones? If I got a young Goldy and older Minnows/Danios, would that be better so the smaller ones could get larger while the Goldfish was still smaller? If I were to provide the smaller fish hiding spots only they could fit into, would that help their chances? Would the smaller fish actually bully the Goldfish?

I feel this would be really cool to do.

I have a 29g and an Aqueon 55/75 filter, but I can switch filters if necessary. I have a heater which will be set to low just to maintain at least 65 as the tank is downstairs and it gets pretty cold down there sometimes. I want to make my own goldfish food too, and I've got some recipes. The Goldy would be slower, I'm guessing, than the smaller fish, so I guess spot feeding is what I would do.

I need to know!!!
 

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The goldfish will definitely try to eat the Minnows and Danios once its mouth is big enough, generally they aren't predators but with just about any fish the rule of thumb is if it fits in its mouth, itll become food, but giving them a place to hide will increase their chance of survival, one problem with the Danios is they are tropical fish and require a higher temperature than 65, they need about 75-84 degrees.
 

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I struck my own curiosity with another post I created earlier.

I LOVE fancy goldfish and I really like White Cloud Mountain Minnows and Danios of many sorts.

Instead of getting 2 fancies, is there a possibility of having a tank with a school of danios or minnows and 1 fancy goldfish? Would the Goldfish eat the smaller ones? If I got a young Goldy and older Minnows/Danios, would that be better so the smaller ones could get larger while the Goldfish was still smaller? If I were to provide the smaller fish hiding spots only they could fit into, would that help their chances? Would the smaller fish actually bully the Goldfish?

I feel this would be really cool to do.

I have a 29g and an Aqueon 55/75 filter, but I can switch filters if necessary. I have a heater which will be set to low just to maintain at least 65 as the tank is downstairs and it gets pretty cold down there sometimes. I want to make my own goldfish food too, and I've got some recipes. The Goldy would be slower, I'm guessing, than the smaller fish, so I guess spot feeding is what I would do.

I need to know!!!

As for goldfish and minnows, I have kept them together for a long time. Some of my goldfish are 9'' or so long and they do not bother my wild feeder minnows. The minnows are cool to watch school. They will get 3 to 4 inches long but the goldfish don't seem to show much interest even in the smaller ones. I also have Zebra danios in the tank that are a bit smaller and they are doing fine. I agree with the other guys answer, that if a fish has a big enough mouth to swallow another fish chances are it will, however, if your tank is full of hiding places and seaweed, etc. you always increase a smaller fish's chances. White clouds and other minnows are fast so that is also a natural defense. In general, though, I do not think you have to worry about goldfish eating your fish. Goldfish and many minnow types are cold-water fish and should do fine even in your basement with no heater. As for making your own fish food try propagating duckweed. It makes an extremely nutritious ingredient to add to your homemade fish food and once you get it going it is like a factory continuously. You can blend it with other greens and ingredients and make frozen fish food or you can dry it and feed it like fish flakes.
 
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