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PostPosted: Apr 16th, '14, 12:37 
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hi,
their siblings here are hitting the feed hard.
maybe they don't see the pellets.
i once used a uv filter light to clear up a pond, that could help but i am not sure what causes the tan color in your system.
let us know how the salt works.
good luck with that large dose of patience :)


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PostPosted: Apr 16th, '14, 17:34 
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Hi Dr Luke, just up the highway in Ingleburn, your new system must be going well if your waiting on 60 trout ? If you have time and your up this way you are wellcome to call in. cheers
Yes thanks Ben I have seen how trout should eat and thats why I'm concerned. No change today, they just slowly swim around ignoring the the pellets (that is the trout near the surface which I can see). I am sure the dirty water is brown algae. I think its growing on the minute particles of scoria dust still suspended in the water which would normally be almost invisible, but when a big blob of algae grows on it . . . ? I did think of getting a UV light but thought it would have cleared up by now.

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PostPosted: Apr 17th, '14, 18:46 
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Rendang. The new system is not going too bad, though not as quickly as I'd like. Fishtank and all plumbing is complete, and system was cycled on temporary filtration. I just have to progressively add my growbeds now. It takes time to shovel all the gravel because the growbeds are too high just to dump the wheel barrow into.

900lt of growbed is currently online (not enough for 60 adult fish), with another 900lts ready to setup as soon as I find a free day (this is enough). Total of 3600lts growbed to be installed in the initial design, so I'll stock around 150+ fish total.


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PostPosted: Apr 27th, '14, 19:11 
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Quote:
DrLuke wrote:
Rendang. The new system is not going too bad, though not as quickly as I'd like. Fishtank and all plumbing is complete, and system was cycled on temporary filtration. I just have to progressively add my growbeds now. It takes time to shovel all the gravel because the growbeds are too high just to dump the wheel barrow into.

900lt of growbed is currently online (not enough for 60 adult fish), with another 900lts ready to setup as soon as I find a free day (this is enough). Total of 3600lts growbed to be installed in the initial design, so I'll stock around 150+ fish total.


Well done, sounds like a great system on the way, it does take some dedication but don't it ?

Its been a tough week, nothing worse than seeing them struggling and then starting to die, really not the start I was hoping for. For a few days I thought they had ick, seemed to show some of the symptoms even thought I saw some white spots but when I netted a few out I had to admit they seemed quite healthy.
So I've come back to the conclusion that they are suffering from the brown algae, they can't see the food and the algae is using up the oxygen despite my air pump being on 24/7. I thought the algae was just a symptom of a new system and would pass with time and a bit of shading but if anything it seemed to get worse so I sprung for a pondmax 18watt UV clarifier and hooked it in last night. Hopefully in 3 or 4 days I will have some happy hungry trout and I will actually be able to see them.
Also made an improvement with the air system. The water circulated around the tanks quite nicely from the inlet but when I strung some airstones along that inlet pipe it disturbed the circulating water and it started welling up from the air bubbles and spread out across the tank and created all sorts of swirls and eddy currents. So I re-hung the airstones in the centre of the tank, now the water is circulating again plus welling up in the middle, across the top and down the sides of the tank, hopefully pushing the waste towards the SLO. (BenG's idea) cheers.

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PostPosted: Apr 28th, '14, 11:12 
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Hi rendang,

Interesting that your trout seem to have the same symptoms that mine recently had. As you say, ammonia and nitrites are nil and the fish look to be in good condition, but appear lethargic and (at least in my case) slowly begin to die off.

I had an interesting time getting things under control. My first step was to do a 50% water change which is more than what is usually advised but the fish were in a sufficiently bad way that I was willing to risk it. At first this appeared to do the job as the fish had recovered, were no longer lethargic and were feeding well within 8 hours of the water change. However, less than 24 hours after that, they were in trouble again . I did another 30% water change and dosed to 3ppt, which seems to have put the issue to bed - they're now consistently smashing the feed.

At this point my theory is that some unknown contaminant had built up in the system while there were no trout, but the exact source, I'm unsure of.

We may be dealing with two completely different issues, but I thought the similarities were enough to warrant sharing my experience.

Good luck.


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PostPosted: Apr 28th, '14, 19:39 
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Hi Dr Luke,
Hey, thanks for that, I also tried two 30% water changes and adding about 3ppt salt but to no avail and I also thought thru every component of the system to try and work out if I had introduced some sort of contamination but came up a blank there also. Anyway I am pretty sure its dirty water from the brown algae which is upsetting them, I don't think I realized how bad it was untill I saw the crystal clear ponds out at fishworks where I bought the UV clarifier from. And, good news on that front, by torchlight tonight I could see a big improvement in water quality, actually saw the SLO for the first time in weeks so tomorrow morning, hoping to see some feeding action !

Also spent some time planting seeds on the weekend I need to get more plants germinated and transplanted into the growbeds to try and get the nitrates down.
cheers.

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PostPosted: Apr 29th, '14, 09:51 
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I should point out that I'm Dr Love, not DrLuke, although I am in south west Sydney too, so the similarities continue!

Glad to hear the UV is working, I made the same investment a couple of years ago and it was definitely worth it.


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PostPosted: Apr 29th, '14, 19:24 
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Dr Love wrote:
I should point out that I'm Dr Love, not DrLuke, although I am in south west Sydney too, so the similarities continue!

Glad to hear the UV is working, I made the same investment a couple of years ago and it was definitely worth it.


Oops, my apologies, put that down to being tired and frazzled after wasting two hours stuck in another monster jam on the M5. You doing trout again this year ?

Well the water is slowly clearing but still can't say I've actually seen a trout eat a pellet yet, but I haven't found any pellets in the filters lately so maybe they are just shy.

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PostPosted: May 4th, '14, 19:32 
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Hi Everyone.
Well what a difference a week makes, especially a week with a UV clarifier working its magic. I have beautiful clear water and some very hungry active trout, its just such a pleasure to throw some pellets in and watch the action. Also been sowing some seeds I need to get more plants in to soak up the nitrates.
Also my first HSM. I asked my daughter to feed them one morning as I had to leave early and when I got home the sump was nearly empty, pump gurgling and water trickling over the edge of the tank. Turns out she got a little over enthusiastic and threw in four big handfulls which partially blocked the outlet and gradually overflowed the tank. The food container now has a teaspoon in it and strict instructions " one feed, one teaspoon ", my fault I should have been more specific. Also got to put in an overflow to the sump on that tank. Certainly proved that the SLO works.
cheers

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PostPosted: May 23rd, '14, 19:15 
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Thought it was time for an update. Got 10 more trout from the same batch as my first lot, brought them over myself from Ben G's place. Barrel, air pump and an inverter plugged into the cig lighter.[img]
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PostPosted: May 23rd, '14, 19:45 
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Made a backup for the air pump from a UPS. Chucked the original batteries and replaced them with two 18 amphour which should last a decent time, will give it a test this weekend.[img]
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PostPosted: Sep 14th, '14, 19:06 
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Been a while since my last update :oops: . Despite a few mistakes on my part the system has been ticking over very nicely, the trout are doing well and the plant growth which was quite slow at first has started to pick up. I think that slow plant growth was partly due to me way oversalting when battling the algae. Some rain over the past few weeks should have washed a large % of that out, might even try some strawberries soon.
The trout are absolutely smashing the food, I really enjoy dropping a handfull in and then watching the waterworks, I reckon I lose one or two litres per feed ! A couple of months back I ran out of food and as a temporary measure I started feeding them chopped up whiting, didn't think it would do them any harm but next thing I know a couple of them were swimming on there side. I netted a few out and they looked in very poor condition so I made an emergency run down to Gerringong, got some good food and they made a great recovery. Turns out that sea fish are very bad for trout, destroys vitamins and impacts their immune system.
So, despite my best efforts :D , everything is going really well and I'm looking forward to see what I can grow this summer.
And when I can remember how I used to resize photos I will post some up. cheers all.

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PostPosted: Sep 30th, '14, 06:18 
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..
Very good looking system there... I will have to organise a visit... how I wish that I had the space..
Weeks ago, there would have been no way that the boss would have considered it.. now that there are luscious lettuce leaves each day, the picture has changed, but alas, there will never be space for anytthing but a compromise system..

I'm looking forward to the return from Brisy.. and the pick up on the way.... returning on the arvo of Thurs 16...
I've not heard from Ben

What does the whole productive system look like today..
..
.


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PostPosted: Sep 30th, '14, 07:17 
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PS... re-sizing photos..

I use a screen capture program called SnagIt... a general screen capture program... will also capture video/sound..
I opent eh photo, although/prntscrn to capture, able then resize to 50%... Save... then attach..
..
.


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PostPosted: Oct 26th, '14, 04:43 
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Great System, it is great to watch the evolution of a system and practical steps taken on the fly to overcome issues that crop up.

Cheers,
DD

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