too much water movement?

swimfast

AC Members
Mar 3, 2005
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So i got an old 10g from my parents, and then got a biowheel 200b so i could upgrade to a bigger tank. It seems to produce a lot of water motion though, and I was wondering at what point it becomes too much? I also put in a filter stone to increase oxidation(and I like the bubbles); so that adds to it. Should I take out the filterstone? Is the 200b too powerful for just a 10g? Thanks for your help, I'm very new to this.
 
You can usually adjust flow rates, but really it comes down to the fish. Many fish are from rivers, and will appreciate the current, while some fish (angels, bettas sometimes, gouramies) tend to prefer slower waters. Most will get used to a higher current, but if you notice them avoiding some places in the tank or being pushed around, you may have a problem. Often, you can direct the current to prevent it from swirling around the entire tank--just some things to consider.
 
There's really no way to tell from across the internet. If it bothers your fish, i.e. you notice your fish getting knocked around or having to struggle with the current, than its too much. You can displace the current with plants, fake plants, whatever. That could help.
 
I have two HOB filters that produce a good amount of surface current. For the first week or so my angel stayed away from the top of the tank, but now goes where it pleases, and will occasionally hang out right under the filter, seeming to enjoy the current (first time i noticed it doing that, i freaked out and checked the water params 2 or 3 times just to make sure all was good!).

So, give your fish some time to get used to it (unless they're literarlly being pushed around the tank by the flow). if they don't get used to it, take out the airstone and rig up something to lesson the water agitation in your tank (use some plastic and silicon aquarium safe glue).
 
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