Penguin Filter

Penguin Filter

"I can use two filters for my 30 gallon aquarium?

I have two wheels Penguin 200 Bio Filter (to 100gal 2). When I use two of them at the same time for my 30gal. It's super clean, but it seems to me the goldfishs not like. The current flow is too strong, just sit on the bottom. When I took a began to swim. But the water smells bad with a filter. Any advice? Thanks

the current flow of water may be too strong for them. lower the current if possible in a filter, but it is recommended to keep goldfish both are cumbersome and require high filtration fish. water should not smell bad, try feed no more and do a water change of 10 percent once a week.

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