I have a 28 gallon with a blue gourami,a german ram,a cory cat and 2 otocinclus catfish and I wanted a discus really bad but don’t know what size tank to get.Oh yeah and there are 3 zebra danios.
The Ram, Cory, and Otos aren’t a problem, but the Danios will be VERY stressful with their darting movements and constant nipping. The Gourami will be quite aggressive towards the Discus, which wouldn’t really handle it well, probably stressing it to the point of death. I wouldn’t recommend Discus for anything less than 40 gallons and 18 inches tall. The taller the tank, the more secure the fish will feel. Extra water volume prevents errors in water chemistry from being magnified before they can be corrected. Assuming you get a 40 gallon tank with a pair of Discus (don’t keep them singly), you should be looking at 1-2 15-25% water changes a week. Feel free to contact me if you have any questions.
EDIT: The pH that suits your current fish is almost identical to that of Discus.
discus need different water quality than the fish u have in ur tank i would put them into another tank the p.h levels need to be around 6-6.5
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well, you cannot keep discus with gouramis or danios, however you could have 3 in that tank when you removed those fish, assuming you know what you are doing, by which I mean doing water changes 3 or more times a week, feeding the proper diet, keeping a watchful eye on temp and water quality, and keeping the water hardness in check. of course, for discus you have to do all these things anyway, so really the tank size doesnt matter here. you could do 3 fish if you are prepared for it. good luck.
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I wouldn’t put them with the gourami or ram. You COULD do a discus in there, but they are extremely sensitive to water quality and need to be kept at temps about 83, so it’s a lot easier to do in a larger tank.
I’d suggest a 55 or better just to keep water quality good enough. Also, discus, even though tank bred, are still pretty sensitive to pH and should have it under 7.0. I’d look into them a lot more if you want to get one.
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The Ram, Cory, and Otos aren’t a problem, but the Danios will be VERY stressful with their darting movements and constant nipping. The Gourami will be quite aggressive towards the Discus, which wouldn’t really handle it well, probably stressing it to the point of death. I wouldn’t recommend Discus for anything less than 40 gallons and 18 inches tall. The taller the tank, the more secure the fish will feel. Extra water volume prevents errors in water chemistry from being magnified before they can be corrected. Assuming you get a 40 gallon tank with a pair of Discus (don’t keep them singly), you should be looking at 1-2 15-25% water changes a week. Feel free to contact me if you have any questions.
EDIT: The pH that suits your current fish is almost identical to that of Discus.
References :