ducati Posted October 14, 2007 Report Share Posted October 14, 2007 What would one expect to be a "normal" mortality rate for 3month old goldfish fry? Quote Link to comment Share on other sites More sharing options...
sub.z Posted October 14, 2007 Report Share Posted October 14, 2007 I had alot of fry die I did all the usual - regular water changes, reguar feeding etc Quote Link to comment Share on other sites More sharing options...
ducati Posted October 14, 2007 Author Report Share Posted October 14, 2007 It seems the ones that die are the weaker and less than perfect - probably natures way of making sure only the strong survive? Quote Link to comment Share on other sites More sharing options...
sub.z Posted October 14, 2007 Report Share Posted October 14, 2007 Possibly, mine were pretty even tho so im not sure Do you find them quite time consuming? Were the fry from your fish? Quote Link to comment Share on other sites More sharing options...
ducati Posted October 14, 2007 Author Report Share Posted October 14, 2007 Yes from my own fish - I think the key is to cull anything that is less than viable - and yes time consuming. I have read a lot about the percentage of quality individuals as being as low as 10% and am beginning to think that is realistic. I need to cull even more - keeping only the top 10% Quote Link to comment Share on other sites More sharing options...
sub.z Posted October 14, 2007 Report Share Posted October 14, 2007 Its not alot is it :-? Best of luck for ya Mine werent my own and it was my first lot of fry so i didnt have much knowledge which probably didnt help Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted October 14, 2007 Report Share Posted October 14, 2007 Goldfish carry a lot of skin and gill flukes which the adults can tolerate but the fry cannot. Quote Link to comment Share on other sites More sharing options...
ducati Posted October 14, 2007 Author Report Share Posted October 14, 2007 so does that explain the few dead ones I find each day? Its only been in the last week or so I have noticed it happening. I dont think there is anything else it could be - am doing water changes and the tanks are well filtered. THanks for your help by the way. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted October 14, 2007 Report Share Posted October 14, 2007 It probably is the reason and the problem is it is usually the better/fancy ones that are the weakest. You can treat the parents before spawning but many of the treatments cause tempoary sterility ( formaldeyde, CuSO4, sheep dip etc). Some people use a salt bath but I am not sure what concentration. I am sure some of the more expert goldfish people on here can help. Quote Link to comment Share on other sites More sharing options...
ducati Posted October 14, 2007 Author Report Share Posted October 14, 2007 OK thanks again - I hope someone can help - its a little depressing having spent a lot of time getting them to this stage!! Guess that's why the good ones fetch good money. Quote Link to comment Share on other sites More sharing options...
dennis Posted October 14, 2007 Report Share Posted October 14, 2007 what are u freeding them are there bellys full they need to be well feed Quote Link to comment Share on other sites More sharing options...
ducati Posted October 14, 2007 Author Report Share Posted October 14, 2007 Yes well fed - I think its the numbers issue - I need to cull more and more and not expect to raise more than a small percentage. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted October 15, 2007 Report Share Posted October 15, 2007 If you are after good quality fish you will need to kull but not to keep them alive. You will find that they are not all growing at the same rate so you will need to seperate out the larger ones or they will eat the smaller (and probably fancy ones) Quote Link to comment Share on other sites More sharing options...
ducati Posted October 15, 2007 Author Report Share Posted October 15, 2007 I have been "drafting" them and keeping like size together. I only want good quality - no percentage in raising inferior stock. I have read that only around 10% max will fit into this group. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted October 15, 2007 Report Share Posted October 15, 2007 If they are red cap orandas ---more like 1% Quote Link to comment Share on other sites More sharing options...
jn Posted October 15, 2007 Report Share Posted October 15, 2007 are they very susceptible to temp. fluctuations? Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted October 15, 2007 Report Share Posted October 15, 2007 In Christchurch, outside they will get quite a range of temperatures but it will be gradual if you have them in a reasonable volume of water, and they will be OK. The warmer they are the faster their metabolic rate, the more they will eat and the faster they will grow. Diseases and bacterial blooms will grow faster as well. Lots of food and fresh water is the go. Quote Link to comment Share on other sites More sharing options...
ducati Posted October 18, 2007 Author Report Share Posted October 18, 2007 I have noticed that a lot of the weaker fry have a sort of "webbed" tail - anyone shed any light on this? Quote Link to comment Share on other sites More sharing options...
sub.z Posted October 18, 2007 Report Share Posted October 18, 2007 I seemed to have alot of fry with a joined tail and i dont think it makes any difference to their health. The only 1 fry that i still have from my batch has a joined tail and he seems fine Quote Link to comment Share on other sites More sharing options...
ducati Posted October 18, 2007 Author Report Share Posted October 18, 2007 They are'nt so much joined but have pointed tips to the tail instead of rounded - I know that sounds a bit a strange but... Quote Link to comment Share on other sites More sharing options...
sub.z Posted October 18, 2007 Report Share Posted October 18, 2007 Do you have a pic? Quote Link to comment Share on other sites More sharing options...
ducati Posted October 18, 2007 Author Report Share Posted October 18, 2007 I'll get one tomorrow - they also look darker than the others. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.