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| Worried about my silver fingerlings http://byap.backyardmagazines.com/forum/viewtopic.php?f=2&t=9097 |
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| Author: | vlt [ Feb 17th, '11, 06:33 ] |
| Post subject: | Worried about my silver fingerlings |
Hi all, With the horrible summer we have had in Melbourne, the SP fingerlings I got for this season have been growing very slowly. Some have not grown at all. I have a spread of sizes as of today, from 50mm to 100mm. Whats the liklihood of a fishkill when the mercury drops this winter? Who else is in a similar situation? |
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| Author: | mantis [ Feb 17th, '11, 07:29 ] |
| Post subject: | Re: Worried about my silver fingerlings |
If you are worried you could try turning off the pumps at night when the time comes. If the fish are small the air pumps overnight will be all they need |
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| Author: | earthbound [ Feb 17th, '11, 09:13 ] |
| Post subject: | Re: Worried about my silver fingerlings |
You should be right, we got all our SP fingerlings through last winter and they were a similar size.. If you were talking black bream you might be in a bit more trouble. |
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| Author: | vlt [ Feb 17th, '11, 10:17 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Hopefully she'll be right...some runts wont make it, but hopefully not a mass kill. I dont pump at night...may system is currently a mix of siphons on 15ON/30OFF timer 8am to 8pm. I run air 24/7. Might do a grading exercise and split them into my 3 IBC tanks before I grab this seasons trout. |
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| Author: | ColinW [ Feb 17th, '11, 15:47 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Silver Perch are a very hardy fish - mine have survived Melbourne Temps Ok without heating water during Winter - and without cooling water during the Summer. I probably underfed mine for first 12 months... BUT they are growing quicker now. Lost 8 fish for "unknown" reasons (all small "runts") out of 50 over last 20 months - "harvested" 2. My fish went into AP System sized at 25mm and 35mm - so yours are much more mature at this stage. My AP System now has a 50lpm Electromagnetic Air Pump - and runs 24/7 with Siphon. I'm sure you will be Ok. Best wishes - ColinW |
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| Author: | vlt [ Feb 17th, '11, 15:57 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Good to hear Colinw |
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| Author: | mantis [ Feb 17th, '11, 16:16 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Its more of a worry up here as we get frosts and you guys in Melbourne dont. But I reckon mine should be ok. Time will tell |
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| Author: | gemmell [ Feb 17th, '11, 19:16 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Be fine - cover the tank to stop frosts chilling the water that extra little bit. I had SP of similar size and got them through a winter no problems. |
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| Author: | bonsaibelly [ Feb 17th, '11, 20:26 ] |
| Post subject: | Re: Worried about my silver fingerlings |
In the same boat as you VLT. I have been wondering the same thing. It's been a bit frustrating and my veg growth has been a bit unbalanced as well I think. Do people tend to add trout to the same system when their silvers go dormant? Would it be risky overstocking if the Silvers are not feeding? |
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| Author: | Food&Fish [ Feb 18th, '11, 01:06 ] |
| Post subject: | Re: Worried about my silver fingerlings |
It isent wise to put trout in the same tank as small silvers the trout will out grow the silvers in no time and make a meal of them |
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| Author: | vlt [ Feb 18th, '11, 03:19 ] |
| Post subject: | Re: Worried about my silver fingerlings |
I have 3 ibc tanks joined to my main 2000 litre tank. Going to shift the dormant SP into the IBCs and grade and count them. Trout will go into the main tank. |
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| Author: | toddscat [ Feb 18th, '11, 05:03 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Hi vlt I'm in the same situation as you, my silvers have grown slowly & i haven't seen the veges take off like others. Am just putting it down to an immature system & the indifferent summer we've had. I was going to ask about having SP's & trout in the same tank but after F&F's post i will be trying to get a second system on line in the next couple of weeks. Having 2 systems & growing trout during the winter in 1 while over wintering the SP's in the other should be able to have a steady supply of fish towards next summer. Baring any mishaps of course. Good luck. Todd |
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| Author: | vlt [ Feb 18th, '11, 08:01 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Good to know I am not the only paronoid ap'er This summer has been strange....not a true Melbourne summer... Anyways.....lets hope the little SP are ok this winter....might be like last winter where is was quite mild. F&F, did you get your trout? Might go the Ballarat in a few weeks. |
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| Author: | bonsaibelly [ Feb 18th, '11, 09:31 ] |
| Post subject: | Re: Worried about my silver fingerlings |
Food&Fish wrote: It isent wise to put trout in the same tank as small silvers the trout will out grow the silvers in no time and make a meal of them I've got the sump never going below 500litres (in 1000ltr IBC) - I was thinking of that as the stocker and then taking the trout out when the weather gets to silver feeding time....maybe 30 or so...? |
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| Author: | Food&Fish [ Feb 18th, '11, 10:57 ] |
| Post subject: | Re: Worried about my silver fingerlings |
vlt wrote: Good to know I am not the only paronoid ap'er This summer has been strange....not a true Melbourne summer... Anyways.....lets hope the little SP are ok this winter....might be like last winter where is was quite mild. F&F, did you get your trout? Might go the Ballarat in a few weeks. Trout probley next weekend |
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