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Posted by swarvegorilla on March 15, 2007, 9:35 pm
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> Gill Passman wrote:
>> nut wrote:
>>> Hi all
>>>
>>> I have a tank with two small dempseys in it, with two filters - a
>>> small external cannister and an internal powerhead filter.
>>>
>>> When the water is filled to the top neither filter outputs produce
>>> any air bubbles in the water, and only a small current... enough to
>>> push debris around the tank, with a ripple on the surface.
>>>
>>> Is this enough to keep the water from stagnating?
>>>
>>> TIA
>>>
>>>
>>>
>> Hi nut,
>>
>> You don't say what the size the tank is but I hope that it is large
>> enough to accomodate them as the JDs grow - otherwise you are in for
>> an upgrade ;-). Apart from Angels I don't have any SA cichlids at the
>> moment but do have Africans - from what I've read and my experience
>> with the Mbuna these fish are pretty messy so over-filtering is a
>> good idea IMHO - along with plenty of regular water changes and
>> gravel vacs...
>> Is there anything that makes you think that the water is stagnating?
>> For example an oily film on the surface or the water not smelling very
>> nice.....If not then your current set up is pretty much OK - and a
>> configuration that I use on a lot of my tanks - ie. one internal/one
>> external. I only ever add bubbles if the temperature in the tanks
>> rises too high in the summer - doesn't happen often in the
>> UK......Having done a quick google on JD's it appears that their
>> natural habit is slow moving water so you probably don't want to have
>> them living in a torrent from your filter outlets.....If you need to
>> break up any residue from the surface of the water try repositioning
>> one of the filter outlets upwards.....
>
> Thanks for your reply Gill - and to the others who have offered their
> advice.
>
> I didn't think the water was stagnating, i was just concerned that, unless
> it's getting enough oxygen & disturbance, it might... but i've since stuck
> a bit of air hose on the powerhead so there's now some air bubbles getting
> into the water.
Oh how I hate those little 'venturi' bits of hose for powerheads.
I wait until I have gathered a few dozen,
then pile them up and set them on fire.
I find dancing around the flames makes up for all the time I put up with
their non-stop horrible gargling.
Oh and many of me fish don't like the way microbubbles stick to them.
Each to their own.... but I think satan put them on earth as payback for
getting stuck with the bottem bunk meself.
>
> The JDs are 4-5 months old... we're not 100% sure of their sex, but the
> Alpha is now twice the size of the other (who, until recently, remained
> hidded behind the filter) so we've called him Jack and the little one
> Jill.
>
> Jack is now about 2" long, Jill is about 1".
>
> They have their own 3 foot tank - just sand substrate & a 12" piece of
> bogwood - which should do them for a year or two until they outgrow it.
>
> In the past week or so they've started playing together and seem to be
> getting on a lot better... Jack rarely chases her around the tank now and
> has begun digging the sand up.
>
> We've just picked up some live shrimp so they - and the convicts - are in
> for a treat tonight... it's usually quite hard to find locally so they
> don't get it much.
>
>
>
>
> --
> Posted via a free Usenet account from http://www.teranews.com
>
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