The Danios are too fast for the Orandas to catch and eat them, so the setup works well.
I currently keep 2 large Oranda goldfish with a group of Zebra Danios. Some of the nippier tropical species, like many members of the Barb family, will nip at the goldfish’s fins, creating stress and increasing the chances of bacterial infections setting in. Keep them in a tank with a slower swimming species like gouramis or some of the dwarf cichlids and the goldfish will dominate the food and the slower swimmers will miss out.įancy goldfish often have fantastic flowing fins. You would have to continue to feed the aquarium until the fastest swimming tanks mates have had their fill and the slower goldfish can have a turn.Ĭommon goldfish on the other hand are very fast swimmers. If you keep them with fast swimming species like danios or some of the rasboras, the goldfish will never get to see any of the food. We have had great success keeping goldfish with their ‘tropical’ cousins, but you have to select their tank mates carefully.įancy goldfish are slow swimmers. Can Goldfish Live With Tropical FishĬan goldfish live with tropical fish, yes, should they, well that depends. Their bodies will be less able to fight off any bacteria which resides in their aquarium. Any food they do eat may take a long time to break down in their digestive systems.Īs when temperatures are too high, this will lead to stress and your goldfish may become susceptible to infections and diseases. Once the aquarium water starts to go below 60 deg F, your goldfish will become lethargic and may stop eating. The fancy goldfish we keep in our aquariums haven’t evolved along the same lines. They go into an almost hibernation-like state. When we keep koi in outdoor ponds, their metabolism will slow right down over winter. Is Cold Water Bad For GoldfishĬoldwater in itself isn’t bad for your goldfish, the problem is, as discusse d above, the colder the water, the slower the fish’s metabolism will work. Whatever way you try to cool an aquarium, take care not to reduce the temperature too much or too quickly, as either one can lead to the death of your fish. Floating small bags of ice can also help reduce the aquarium temperature. Having a fan blowing across the open tank top will reduce the temperature via evaporative cooling. At this point, you should consider ways to cool down the aquarium water. If you live in a hot climate, natural air temperature can raise your goldfish aquarium above 76 deg F. Bacterial infections will also take advantage of your goldfish’s weakened system. Ich (whitespot) is an early indicator of a fish’s poor health (see my article Why Does My Goldfish Have White Spots?). Goldfish kept in water that gets much hotter than 76 deg F will quickly show signs of illness. This stress will lead to a weakening of their immune system. Once temperatures start to get too high, the goldfish will become stressed. The faster the metabolism works, the more food the fish will need to consume. The warmer the water gets, the quicker the fish’s metabolism will work.
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