pearlyred Posted October 15, 2005 Report Share Posted October 15, 2005 How much effect does light have on the growth of fry? Will fry with exposure to plenty of light grow any quicker than fry that have less light, or just plain daylight? Ta Quote Link to comment Share on other sites More sharing options...
livebearer_breeder Posted October 15, 2005 Report Share Posted October 15, 2005 Doubtful it makes much difference unless they have some strange photosynthesis capability, its more about the amount of needed nutrients you can provide your fish/fry as to how fast and big they grow. Shae Quote Link to comment Share on other sites More sharing options...
caserole Posted October 15, 2005 Report Share Posted October 15, 2005 Shae is basicly right but there are exceptions, I believe live bearers need good amounts of light per day. Quote Link to comment Share on other sites More sharing options...
Pegasus Posted October 15, 2005 Report Share Posted October 15, 2005 Fish also derive a certain vitamin from light.. (can't rem which.. A I think).. but fish in subdued lighting will not feed at the same rate as ones in normal lighting.. so I would imagine their growth would also be affected. Normal daylight might be fine.. but the feeding hours would be greatly reduced for fry. Bill. Quote Link to comment Share on other sites More sharing options...
pearlyred Posted October 15, 2005 Author Report Share Posted October 15, 2005 Ah ok, thats interesting. Just wondering if the slow growth rate of our betta fry has anything to do with them not having a proper light on top of the tank.. Quote Link to comment Share on other sites More sharing options...
livebearer_breeder Posted October 15, 2005 Report Share Posted October 15, 2005 Bettas grow naturally slow anyway, are you feeding them BBS? Shae Quote Link to comment Share on other sites More sharing options...
pearlyred Posted October 15, 2005 Author Report Share Posted October 15, 2005 No, they're on microworms at the moment. I know they're slow growers, but just figured they should be bigger than they are by now. Actually, theyre about the same size as bbs! Quote Link to comment Share on other sites More sharing options...
caserole Posted October 15, 2005 Report Share Posted October 15, 2005 How old are they from free swim stage pearlyred, I had my betta fry eating bbs 4 or 5 days after free swim.., they were on bb microworms before that. Quote Link to comment Share on other sites More sharing options...
pearlyred Posted October 15, 2005 Author Report Share Posted October 15, 2005 How old are they from free swim stage pearlyred, I had my betta fry eating bbs 4 or 5 days after free swim.., they were on bb microworms before that. I think theyre about 4 weeks now. Quote Link to comment Share on other sites More sharing options...
shiuh Posted October 15, 2005 Report Share Posted October 15, 2005 my betta fry were borned on 4th Sept. they are around 1.1cm including tail....so i would say betta fry grow up quite slow compared to guppies. i feed them on bbs twice daily. Quote Link to comment Share on other sites More sharing options...
Pegasus Posted October 15, 2005 Report Share Posted October 15, 2005 Hi PR.. The size of the rearing tank can make a bit of difference for some fry. Often a smaller tank is better in some cases, as the fry don't have to hunt for food.. but it is in front of them at all times during feeding periods. An example would be that Betta fry would fare better in a 300x300x300 (or a couple if a larger spawn).. tank/s rather than a 600x300x300. Larger tanks mean that the fry are expending great amounts of energy in their quest for food... plus bare bottom tanks let them get the food much easier. Also heavy filtration outlets can make the fry expend a lot of energy.. which is the main reason I use sponge filters in my fry tanks. It's been a fair few years since I bred the Bettas.. but one thing we always did was to lower the water level "very slowly" once the eggs were seen in the nest.. and this level was maintained for several weeks so that the fry didn't have to fight constantly to reach the surface... which again saved their energy. Bill. Quote Link to comment Share on other sites More sharing options...
pearlyred Posted October 15, 2005 Author Report Share Posted October 15, 2005 In that case i might put some bbs in to hatch tomorrow, my fry are way behind the 8-ball. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted October 18, 2005 Report Share Posted October 18, 2005 Its a few years since I bred bettas but I found it worked for me by lowering the water leval and drip feeding infusoria through a blood transfusion system for the first few weeks gave them a good start. I used a 12volt pilot light system to keep them feeding at night and to avoid the shock when the main lights came on. You can then start introducing microworm and artemia nuplii as they get big enough. If they can't see the food they can't eat it, and their growth will be directly proportional to the amount of good quality food you can get them to eat. Quote Link to comment Share on other sites More sharing options...
Alan Posted October 18, 2005 Report Share Posted October 18, 2005 How is your baby tank set up PR?? Size, depth, temperature, etc. Alan 104 Quote Link to comment Share on other sites More sharing options...
pearlyred Posted October 20, 2005 Author Report Share Posted October 20, 2005 Alan, the tank their in probably isnt ideal but its all that was empty. Theyre in roughly 30x18cm tank, with about 12cm depth of water. Temp is around 27-28 degrees. Dont have a sponge filter spare atm, so they have just an air stone and i've been doing small water changes. Top is sealed with a plastic wrap cover. Theyre definately in there (or something is anyway), they just dont seem to be growing Quote Link to comment Share on other sites More sharing options...
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