All times are UTC + 8 hours




Post new topic Reply to topic  [ 33 posts ]  Go to page Previous  1, 2, 3  Next
Author Message
 Post subject:
PostPosted: Sep 22nd, '06, 19:45 
Almost divorced
Almost divorced
User avatar

Joined: Aug 25th, '06, 14:54
Posts: 1278
Location: Adelaide
Gender: Male
Quote:
for one i thing i found a good bio-filler medium.

The netting that is used to cover a green house.


I was also thinking of using shadecloth stuffed into a small length of PVC as a biofilter. It's lightweight, cheep (I've got a whole stack of it in the shed), has a large surface area, and if it ever gets clogged up I can remove it easily and either hose it off or replace it.


Top
 Profile  
Reply with quote  
    Advertisement
 
 Post subject:
PostPosted: Sep 22nd, '06, 19:48 
Moderator
Moderator
User avatar

Joined: Mar 18th, '06, 09:41
Posts: 9072
Location: Brisbane
Gender: Male
Are you human?: YES
Location: Brisbane
If you are going to go for that sort of thing, also consider bird netting.


Top
 Profile  
Reply with quote  
 Post subject: Re: Mediumless aqua?
PostPosted: Sep 23rd, '06, 00:17 
Legend Member
Legend Member

Joined: Jun 19th, '06, 17:17
Posts: 695
Location: Bundamba, Queensland
Gender: Male
When you hose off the bio-filter media, you also hose off the substrate which accommodates the bacteria.

This may not be a problem if all you are looking to do is strainer out solids - in which case you do not have a bio-filter but a filter or strainer.

A biological filter, is by definition, a device which encourages the colonisation of beneficial bacteria.


Top
 Profile  
Reply with quote  
 Post subject: Re: Mediumless aqua?
PostPosted: Sep 23rd, '06, 06:17 
Almost divorced
Almost divorced
User avatar

Joined: Aug 25th, '06, 14:54
Posts: 1278
Location: Adelaide
Gender: Male
That's what I mean, a mechanical filter not a biofilter (the biofilter will be seperate) although over time it will serve the same purpose to an extent.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 23rd, '06, 07:30 
In need of a life
In need of a life
User avatar

Joined: Jul 20th, '06, 08:36
Posts: 1915
Location: Iowa
Gender: Male
I'd think it would be a problem when you took it out and cleaned it as you would loose some of your bacteria, and there by the balance of your system would be off, never stable just all up and down. I wouldn't do it unless your just experimenting.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 23rd, '06, 07:40 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
User avatar

Joined: Aug 7th, '06, 20:07
Posts: 8293
Location: margaret river West Oz
Gender: Male
Location: Western Australia
mmm...I seem to remember a post of Steve0's saying the more diverse the system the better it is. More balanced more bio mass the more bio mass the more balanced and so on.
C1


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 23rd, '06, 07:54 
In need of a life
In need of a life
User avatar

Joined: Jul 20th, '06, 08:36
Posts: 1915
Location: Iowa
Gender: Male
In my mind, once a system is balanced you have a set number of fish, a set number of plants and a set amount of bacteria.
To remain in balance
1. If you harvest a plant you must plant another.
2. If you harvest a fish you must add another.
3. If you reduce the amount of bacteria the whole system goes amiss as it must now begin the cycling process all over.
So if you were to take a balance supporting colony of bacteria out of the system by washing your filter or dumping one grow bed I'd think you would see ammonia spikes as the bacteria attempted to compensate for the loss. With that one would be chasing your tail every time you washed the netting or what have you. Don't you think that would be the case?


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 23rd, '06, 08:22 
Moderator
Moderator
User avatar

Joined: Mar 18th, '06, 09:41
Posts: 9072
Location: Brisbane
Gender: Male
Are you human?: YES
Location: Brisbane
I agree with GF. You end up with the amount of bacteria in your system that is needed to deal with the fish waste. When fish waste reduces, bacteria reduces and vice versa. I guess one unknown (for me at least) is how quickly the bacteria levels can change to compensate for fluctuations in waste etc. For example, if I stop feeding for a few days while away on holidays, can I go straight back into my normal feeding regime when I return - or should I work up to it over a few days?


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 23rd, '06, 10:19 
Site Admin
Site Admin
User avatar

Joined: Mar 22nd, '06, 00:28
Posts: 12757
Location: Melbourne, Victoria
Gender: Male
Are you human?: YES- kinda
Location: Melb Vic OZ
VB, nothing concrete here, but i'd say that if you droppped feeding for a few days or even longer and then brought it back up again, you would be fine......... The bac.s reproduce to the level where there is no more ammonia to covert. I think this is primarily due to the nitrification process being so energy consuming, that there is very little left for reproduction. so thats the mechanism that comes into play for the colony size.

Now if you LOWERED feeding (ammonia) i'm sure that they would survive happily at their current colony size until you brought it back.

Otherwise all the bacteria in the bottles wouldn't be very viable :)


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 23rd, '06, 10:33 
Legend Member
Legend Member
User avatar

Joined: Aug 7th, '06, 20:23
Posts: 936
Location: Adelaide
Gender: Male
Location: South Australia
I have never had any problem with loosing bacteria on bio media if you gently rinse it in the tank/pond water. If you use a hose or something the chlorine in the water will damage your precious bacteria as well


Top
 Profile  
Reply with quote  
 Post subject: Re: Mediumless aqua?
PostPosted: Sep 25th, '06, 00:26 
Legend Member
Legend Member

Joined: Sep 7th, '06, 06:09
Posts: 582
Location: Barbados
Gender: Male
Are you human?: no i am a fish
Location: Barbados, St. George
here are some pics of the system


Attachments:
File comment: view from above
S5300001.JPG
S5300001.JPG [ 24.41 KiB | Viewed 4416 times ]
Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 25th, '06, 00:32 
In need of a life
In need of a life
User avatar

Joined: Jul 20th, '06, 08:36
Posts: 1915
Location: Iowa
Gender: Male
CG, more pictures please and a bit of description.


Top
 Profile  
Reply with quote  
 Post subject:
PostPosted: Sep 25th, '06, 00:34 
Legend Member
Legend Member

Joined: Sep 7th, '06, 06:09
Posts: 582
Location: Barbados
Gender: Male
Are you human?: no i am a fish
Location: Barbados, St. George
cool


Top
 Profile  
Reply with quote  
 Post subject: Re: Mediumless aqua?
PostPosted: Sep 25th, '06, 00:39 
Legend Member
Legend Member

Joined: Sep 7th, '06, 06:09
Posts: 582
Location: Barbados
Gender: Male
Are you human?: no i am a fish
Location: Barbados, St. George
a next one


Attachments:
S5300002.JPG
S5300002.JPG [ 37.21 KiB | Viewed 4409 times ]
Top
 Profile  
Reply with quote  
 Post subject: Re: Mediumless aqua?
PostPosted: Sep 25th, '06, 00:39 
Legend Member
Legend Member

Joined: Sep 7th, '06, 06:09
Posts: 582
Location: Barbados
Gender: Male
Are you human?: no i am a fish
Location: Barbados, St. George
the pump


Attachments:
S5300005.JPG
S5300005.JPG [ 25.18 KiB | Viewed 4402 times ]
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 33 posts ]  Go to page Previous  1, 2, 3  Next

All times are UTC + 8 hours


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.037s | 15 Queries | GZIP : Off ]