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Trout Issues http://byap.backyardmagazines.com/forum/viewtopic.php?f=29&t=9670	Page 1 of 3

Author:	Silvertrees [ May 14th, '11, 20:09 ]
Post subject:	Trout Issues
Hi All, Earlier today I found a couple of dead fingerlings so I removed them and tested water. All seemed OK. Tonight on my return I have about 20 fingerlings dead and also 5 adult Trout (1KG+). These are in seperate tank but part of same system. Remaining large trout in main FT are sluggish but smaller ones seem OK. I harvested a couple of big ones today 1.4KG and found pine needles in there stomachs, I thought that this was my problem and planned to harvest the rest tomorrow. Any other idea's Thanks

Author:	earthbound [ May 14th, '11, 20:18 ]
Post subject:	Re: Trout Issues
Thats really weird. You have a pine tree near by then? Are there any pine needles in the fish tank at the moment?

Author:	faye [ May 14th, '11, 20:31 ]
Post subject:	Re: Trout Issues
Huh, that sounds feasible to me! I can see it now, the pine needles land on the surface of the fish tank, trout don't look to investigate, they just swallow! Too late!

Author:	Silvertrees [ May 14th, '11, 21:06 ]
Post subject:	Re: Trout Issues
Yes there are a few pine needles in the water at the moment. I scooped as many out as I could earlier today. I tested the water and ammonia and nitrites were 0, ph normal. Nitrates a little high but should be OK. Think I will retest again in the morning!

Author:	Silvertrees [ May 15th, '11, 09:54 ]
Post subject:	Re: Trout Issues
Another common factor is all large trout that have died are full if eggs! Could this also be a factor ?

Author:

Silvertrees [ May 15th, '11, 12:00 ]

Post subject:

Re: Trout Issues

A few pics of whats going on :upset:

Attachments:

File comment: All looks OK

Test1 (Small).jpg [ 41.48 KiB | Viewed 5830 times ]

File comment: A big fish

Trout (Small).jpg [ 69.83 KiB | Viewed 5829 times ]

File comment: Fingerlings

Bucket (Small).jpg [ 28.33 KiB | Viewed 5831 times ]

Author:

Silvertrees [ May 15th, '11, 12:02 ]

Post subject:

Re: Trout Issues

A couple more.

All large trout go very quiet and then look like this :think:

I have nearly lost the whole lot about 40 fingerlings and 8 large fish.

Attachments:

Test2 (Small).jpg [ 39.78 KiB | Viewed 5822 times ]

Trout Close (Small).jpg [ 69.53 KiB | Viewed 5823 times ]

Author:	earthbound [ May 15th, '11, 12:05 ]
Post subject:	Re: Trout Issues
Troutman did say something about trout not getting beyond a certain age because they can't deposit their eggs.. Still that wouldn't explain all the fingerlings. I still think perhaps an external contaminant, pine needles or something.... And of course you can't really test for those things...

Author:	freoboy [ May 15th, '11, 12:28 ]
Post subject:	Re: Trout Issues
or DO if their mouths are wide open, what aeration do youhave?

Author:	Silvertrees [ May 15th, '11, 12:50 ]
Post subject:	Re: Trout Issues
I thought DO as well for a while but as I haven't had a problem with DO before and thought that it would of been an issue in higher temps I ruled it out. I am running a 70lpm air pump through air stones and curtains into both FT's and the sump as well to ensure good DO of incoming water. I am looking at external contanimants but nothing is obvious (apart from pine tree, which hasn't been an issue for the last 12+mths). There is 1 of last seasons fish in the main FT and shoing no signs of illness.

Author:	Silvertrees [ May 15th, '11, 13:19 ]
Post subject:	Re: Trout Issues
Was salted to 3ppm when fingerlings were added about 6 weeks ago.

Author:	Food&Fish [ May 15th, '11, 13:25 ]
Post subject:	Re: Trout Issues
What food are you using and from where

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