Join Date: May 2012
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Re: large bump on side of goldfish
Sorry about his death, it's hard. It's debatable whether or not your tank is overstocked. I have done just fine with smaller gallons and more fish. But the more fish you have the more you have to check, and less gets noticed. Keep an eye on their skin, the faster you see signs, the easier to treat.
Ryukin's are very ill bred. They have small heads and fat bodies. I had a few because my mother liked them and they all suffered from bloat, and died very long and painful deaths. Never again!
I stick with Orandas, while they are bred in different ways they are more hardy. I had my very first fish, an Oranda, and she lived for 12 yrs.
Just keep an eye on the others, and if you see even the smallest bump/patch/spot, research and treat.
Also, get emer kits of different meds and water testing kits. If you keep an eye on your ammonia levels, you can know if problems will come. Change your water 25% as you are, they will only get bigger.
2 Orandas: Paquito (7yrs) Mohawk (1 yr) RIP: Painter (3yrs)
2 Comets: Dab (3yrs) Flash (3yrs)
2 Siamese Algae Eaters: Houdini (1 yr) Waldo (1 yr) A whole troop of Zebra Danios!