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PostPosted: Mar 5th, '15, 16:00 
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..
Steve

re yabbies - for you no tearing rush..

I'll keep them aside, safely... for when convenient...

my only need is to "Eventually" empty that aquarium, for the :whistle: yet to be conceived next lot...

my problem - the big male has gone walkies.. and I don't know if his prodigy are fertile yet.. :dontknow:
I retrieved some from the top sump
The main mother will either like some incest, or EAT them.. :oops:

The best thing will be to have a small aquarium/container, and shove some structures in and about 10 fry..
then let them go for it...
Eventually there might be about three breeders and you will be off..

OR - they can be just set free in the sump and left to it... I prefer to be in control of the Baby-Farm, so you know what you are releasing...

The strong recommendations of those who know, seems to be to ONLY have males in the main tank..
I think this is to reduce the mortality from Harem-Wars...

Only problem is that you then need to grow them to a point where you can pick-the-willies.. :funny1:

Charlie has made it clear that breeding yabbies is pointless practice, but then WE won't be doing it for commercial advantage..

I'm thinking of shoving some in the raft bed, despite the greater possibility of them being able to crawl out, but then I wonder if they will chew off the lettuce roots.. :upset:

Peter


and... I picked up another mobile Air-Cond today - so another possible chiller..
2500W cooling , 900W consumption.. (lousy COP - but that could be the issue of portable's being seriously inefficient wrt conventional..)
..
.


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PostPosted: Mar 8th, '15, 10:16 
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Ok thanks Peter for holding them, I haven't got the sump organised yet and I have to go away this week for work. I need to block off the bulkhead fittings so they can't get into the pump side of the sump and I think I will cover the floor with shellgrit. Hopefully that will keep them happy and help raise the PH of the whole system which has been low for a while now. It will be dark in there and that is supposed to reduce the cannibalism.

Did you get your first chiller set up yet ?

The SP's are going great, they are hitting the pellets on the surface and a few of them are over 200mm but I need to get rid of some as I want to make room for trout, thinking of going for a run to Arc en Ciel in the next few weeks if you want some.
Decided to flood the growbeds last week to see what ants and such would come up out of the media and forgot about it and woke up next morning to a gurgling pump in a near empty sump, proving once again that the greatest danger to my fish . . . . . is me ! No casualties fortunately.

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PostPosted: Dec 28th, '15, 19:31 
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Xmas holidays and I need a project so I thought I would have a go at installing a window in one of the tanks in the big system. I've become an inveterate fish watcher over the last couple of years and I had often thought it would be really cool to see them thru a window but it wasn't till I saw this vid on Sophia's thread that I gave it serious thought.

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PostPosted: Dec 28th, '15, 20:04 
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So I bought a 500x500 piece of 4.5mm perspex for $23 and 50 stainless steel nuts, bolts and washers also around about $23, watched the vid a few more times and was ready to go.
First step was to bypass and drain the tank, all the SP and Tandanus are in the other tank.
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PostPosted: Dec 28th, '15, 20:16 
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I'd left the perspex bent over a pipe in the sun for a few days which gave it a nice curve and made the job a bit easier but I basically followed the steps as outlined in the video.


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PostPosted: Dec 28th, '15, 20:44 
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I soon made my first boo-boo. I naturally selected a new drillbit for drilling the perspex but it bit too quick and hard and busted thru and cracked the perspex around the hole. Then I remembered hearing or reading somewhere that its better to drill some materials with a used, slightly blunt drillbit, so I drilled into a bit of old fibro a few times and that took the edge off it and I finished the other 46 holes without a problem. Then I smeared some PVC cement over the cracks and just hope it sinks in and prevents further cracking, like a tiny stonechip turns into a big crack right across the windscreen.[img]
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PostPosted: Dec 28th, '15, 21:17 
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I cut a 380mm x 380mm hole in the tank which left 60mm overlap of perspex for the bolts and silicone to (hopefully) make a watertight seal. I had investigated all sorts of marine adhesives but none of them would guarantee to adhere to polyethylene so in the end I opted for the tried and true Selleys Roof and Gutter silicone. I sandpapered the tank and cleaned it up with metho then sprayed it with a light coat of plastic primer, hoping that will stick to the polyethylene :dontknow: and give the silicone something to stick to. Well, we shall see. [img]
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PostPosted: Dec 28th, '15, 21:33 
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It took a day and less than $50 not counting the silicone which I already had, now its just a matter of waiting a couple of days for the silicone to dry and hopefully no leaks when I fill the tank up !
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PostPosted: Dec 28th, '15, 21:41 
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Looks great! Nice job. Hope you don't have any leaks


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PostPosted: Dec 28th, '15, 22:18 
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looking good!!!!

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PostPosted: Dec 29th, '15, 06:12 
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In need of a life
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Plus one ...

I too hope it does not leak.. :upset:

I love the idea, but it is all so very final, and the fear of a leak starting after you have it full and stocked with fish... ??? Well what do you do with them if it all needs to be redone ... :oops: :support: :dontknow: ..

We will all be keen to see the final results....
.
Peter


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PostPosted: Dec 29th, '15, 06:33 
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Looks good. Impressed you didn't skimp on bolts!


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PostPosted: Dec 29th, '15, 07:05 
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Thanks guy's.

Quote:
Brian wrote:
Looks good. Impressed you didn't skimp on bolts!

Had to use plenty of bolts I had forgotten how flexible the tank wall is compared to the rigid perspex. I should have got larger washers too.

Quote:
BuiDoi wrote:
Plus one ...

I too hope it does not leak.. :upset:

I love the idea, but it is all so very final, and the fear of a leak starting after you have it full and stocked with fish... ??? Well what do you do with them if it all needs to be redone
Peter

If it all goes pear shaped I got some spares in the carport :wink:
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PostPosted: Dec 30th, '15, 12:41 
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Nice thread and great build rendang. Really enjoyed going through it.

Martin.


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PostPosted: Dec 30th, '15, 17:14 
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Thanks Martin,I hope you are enjoying life in NZ and can get back into it soon.

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