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Anymore room in my tank2007-11-24 23:09:36

I have a 10 gallon tank with a tetra whisper powerfilter. I do 25% water changes weekly and my amonia/nitrate/nitrite levels are acceptable. I have 6 zebra danios, 1 comet goldfish (2-3 inches) and 1 cory catfish. I would like to add another cory or otocinclus but am afraid that the tank is already pushing the envolope. thanks

Answers:

No its over crowded already and the comet goldfish will get around 6-8inches.

Even if the comet goldfish gets around 6-8inches they still atleast need a 12-20gallon tank each because of bioload and size. But mainly all goldfishes need atleast 25-30gallon tank with a good proper filter.

And at the same time goldfishes are coldwater, but you still need a atleast 24 to 30gallon tank for the tropical fish you have now and have your new cory and/or oto that you want or a 45gallon for a nice school of cory(6)(They are best kept in this number or more).

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10 gallons per three inches of goldfish is a good rule. What do you consider an acceptable level? Ammonia and nitrites should be at a constant 0 to be acceptable, anything above that means the tank is not fully cycled. Once the tank is cycled you should never see these chemicals spike again, unless you overclean. Nitrates should be under 10 ideally. Corys and otos are schooling fish, so if anything, add another cory to your existing one rather than getting a single oto.

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overstocked now,