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Re: [APD] Filters
1- A filter may or may not be necessary—see below—but it won't do any
2- Plants will remove biological waste from the fish extremely
effectively provided you have enough plants. You can consider filters
as a plant replacement or plants as a filter replacement when it
comes to dealing with biological fwastes. You need to have enough
for your fish load and it doesn't matter whether that biological
capacity is supplied by a filter, by plants, or a combination. Having
extra filter capacity won't hurt or do harm and may even help, but
not having enough will cause problems. Having some mechanical
filtration is a good idea.
3- You need water movement for oxygenation. If you're not using a
separate powerhead or pump to supply that, a filter will do the job.
If you have the water movement from a pump or powerhead and you have
enough plants, you're fine but, as I said in 2, having a filter won't
4- Provided the filter provides sufficient water movement and
mechanical filtration, I don't think the type of filter is all that
important. Whatever fits with your tank and appearance needs, and is
easy to look after will be fine. If that happens to be a hang-on
filter, then go with that.
I ran my tank without a filter for a long time, just using a
powerhead for water circulation. I'm back using a filter. The tank
seems to run just as well with or without a filter provided there are
sufficient plants for the fish load. Having a filter may let you
handle a slightly larger fish load than the plants on their own
would, but it isn't a good idea to push fish load to the limits in my
view. I think the water looks a little clearer with a filter, but
that's probably because there's a bit more sponge volume providing
mechanical filtration (as well as biological capacity) in the filter
than I had with the powerhead on it's own. You can try with and
without yourself and go for whichever one suits you, or just run with
a filter like most people do. It's really your choice provided you
have enough plants and the fish load isn't excessive.
On 01/10/2006, at 7:47 AM, Holly Wagner wrote:
> Hi All,
> I'm getting ready to set up a new 55 gal planted tank. In the
> past I've never question the need for a filter. On my current tank
> I use a HOT Magnum with the outlet under the water line. I've had
> issues with the prefilter getting clogged. Now that I'm getting
> ready to set up another tank I'm thinking:
> 1. Is a filter *necessary?"
> 2. Under what conditions is a filter truly needed in a planted tank?
> 3. If I choose to use pumps or powerheads for water movement,
> does that make any difference in my need for a filter?
> 4. If I need a filter is a cannister filter of some kind
> necessarily the most effective or the best choice for a planted
> tank? All these years I've hat HOT Magnums on two 55 gal tanks. I
> like the design and the fact that it hangs on the back of the tank
> where it's not visible.
> Thanks in advance for any input or ideas.
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