Water quality for fry tank

McReefer

Membership Expired
So I've been reading more and more on fish that people have tried breeding and fail at 1-20 days. I've noticed a lot of breeders logs that never cover the water quality or element levels. I understand that the general view of fish is that you don't need to worry about you trace levels or Cal, Mag, Iod, and so on. These have only been taken into consideration when keeping corals or VERY picky fish. I see a lot of breeders using cheap brands of salt that are not even balanced. My thought is that the developmental stages of fry are just as sensitive to these levels as the coral are. I honestly think that this could be a major factor in the success rate. Any input?
 
temp and water quality is what I have noticed with my clowns. I was doing a 1g water change daily for about the first 14 days and then moved it to once every four days and then once a week.

I do not think it is as much the water, unless it is high in ammonia, as it is getting the fry to eat. I lost my fry due to diet over water I would say and that is because they have to learn to eat and if you do not keep enough food in there for them to learn what it is they will die and in turn the food creates havoc on the water quality. I am sure others have some input as well that have raised fry in separate tanks from the parent tanks.
 
@Lance6270 wrote:
temp and water quality is what I have noticed with my clowns. I was doing a 1g water change daily for about the first 14 days and then moved it to once every four days and then once a week. I do not think it is as much the water said:
Clowns have always been a breeders first choice. Lets say damsels or dart fish, they never make it past what... 72 hours? Could it be they need these elements to help them develop so they can eat? And maybe with green water, there eating but its missing an element they need? Just wondering...

Also I found one breeder of seahorses that does does Cal, Mag and Stro.
http://www.tfhmagazine.com/details/articles/breeding-seahorses.htm
 
Ok took me a LONG time to find this article and it wasn't easy. It's based on sea hares but it points out why Stro is needed in the first 72 hours. One of thee reasons is Strontium is essential for the normal development of locomotory behavior.

Link.
http://www.biolbull.org/content/170/1/75.full.pdf
 
I am not sure about seahorses but I plan on visiting a seahorse farm in Kona while I am there next week and I will ask what they do.

I am sure you can also get better answers for your questions over here at the MBI site http://www.mbisite.org/Forums/ as they are some breeding machines over there and work on everything under the sun to try and get them captive breed.

Here is also someone who is breeding their Damsels http://www.mbisite.org/Forums/tm.aspx?m=64111
 
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