RyanR Posted January 2, 2021 Share Posted January 2, 2021 (edited) I hatching my 4th batch of BBS and my first using Aquarium Co-Op Brine Shrimp Eggs. I'm about to drain them, but I've never seen such a thick layer at the top before. Are those all of the shells? Edited January 4, 2021 by RyanR Link to comment Share on other sites More sharing options...
Struggle Posted January 2, 2021 Share Posted January 2, 2021 Yep, those are the shells. 1 Link to comment Share on other sites More sharing options...
RyanR Posted January 2, 2021 Author Share Posted January 2, 2021 (edited) Using the small vial of eggs I got the first time from the Co-Op, I didn't see nearly that many shells. I guess that's what they are talking about when they say 90% hatch rate. Huge difference! Great job @Cory! Edited January 4, 2021 by RyanR Link to comment Share on other sites More sharing options...
Billfromtx Posted January 5, 2021 Share Posted January 5, 2021 (edited) I also was surprised by that top layer. However, I do not have any shrimp. It's now 48 hours and barely any hatching. Any ideas what I'm doing wrong? My Setup: 1.5 TSP Aquarium COOP Eggs Well water (Hardness, yes) PH is 7.5 to 8.0. 1 L of water 2 TBS of Aquarium Salt Pinch of baking soda This is my 2nd batch, 1st batch I got maybe 30% hatch rate. Edited January 5, 2021 by Billfromtx Link to comment Share on other sites More sharing options...
Daniel Posted January 5, 2021 Share Posted January 5, 2021 Just now, Billfromtx said: I also was surprised by that top layer. However, I do not have any shrimp. It's now 48 hours and barely any hatching. Any ideas what I'm doing wrong? Do you have an airstone in the hatchery? Link to comment Share on other sites More sharing options...
Billfromtx Posted January 5, 2021 Share Posted January 5, 2021 Just a hose. Using a 2 liter bottle with a CO2 cap. Link to comment Share on other sites More sharing options...
Hobbit Posted January 6, 2021 Share Posted January 6, 2021 What light and temperature do you currently have? Link to comment Share on other sites More sharing options...
RyanR Posted January 6, 2021 Author Share Posted January 6, 2021 I use a construction type clip-on lamp with the silver housing and a 60W incandescent bulb. You could also use a flexible desk lamp. I figured out that I needed to be about a foot away to keep the water at 80°. 1 Link to comment Share on other sites More sharing options...
RyanR Posted January 6, 2021 Author Share Posted January 6, 2021 3 hours ago, Billfromtx said: I also was surprised by that top layer. However, I do not have any shrimp. It's now 48 hours and barely any hatching. Any ideas what I'm doing wrong? My Setup: 1.5 TSP Aquarium COOP Eggs Well water (Hardness, yes) PH is 7.5 to 8.0. 1 L of water 2 TBS of Aquarium Salt Pinch of baking soda This is my 2nd batch, 1st batch I got maybe 30% hatch rate. What's your water temp? I keep mine about 80° and I use @Dean’s FishroomFishroom method in this video. I also only use 1 tsp of eggs, 1L of water and 2 tbsp of salt. You are close enough with your recipe where your eggs should be hatching if your temp is ok. To a certain limit, the lower your temp, the longer it will take your eggs to hatch. Link to comment Share on other sites More sharing options...
Billfromtx Posted January 6, 2021 Share Posted January 6, 2021 I think I may have had light source to close. And cooked the eggs? I have no way to measure temp at this time. Using a clear 50w incandescent that I use on hotbox for warming oil clay. Had it probably 3" to 4" backed off to 8". Link to comment Share on other sites More sharing options...
Schwack Posted January 6, 2021 Share Posted January 6, 2021 2 minutes ago, Billfromtx said: I think I may have had light source to close. And cooked the eggs? I have no way to measure temp at this time. Using a clear 50w incandescent that I use on hotbox for warming oil clay. Had it probably 3" to 4" backed off to 8". Willing to bet things got too hot. I had been using a 60w incandescent in a clamping work light and with an ambient temp of 72F I had to keep it ~12" away or my temps would shoot well over 86F. You might consider snagging a cheap infrared thermometer off Amazon. I use mine whenever "close enough" is OK. 1 Link to comment Share on other sites More sharing options...
RyanR Posted January 6, 2021 Author Share Posted January 6, 2021 6 minutes ago, Schwack said: Willing to bet things got too hot. I had been using a 60w incandescent in a clamping work light and with an ambient temp of 72F I had to keep it ~12" away or my temps would shoot well over 86F. You might consider snagging a cheap infrared thermometer off Amazon. I use mine whenever "close enough" is OK. Exactly what he said...lol. My ambient temp is about 73 or so. I thought originally I had to be only about 4 inches away and I was close to 90. Those lights get pretty hot. I end up being about a foot away, maybe 14 inches. Link to comment Share on other sites More sharing options...
Dancing Matt Posted January 6, 2021 Share Posted January 6, 2021 I leave mine in the bathroom cupboard without light or heat and only use the air bubble that came with the ziss hatchery. I started with the light but eventually took it away. Now they hatch in the dark at what ever the room temp is and I get good hatch rates. When the house is colder it can take 36 hours to hatch, warmer means 24 hrs. We live in Colorado and leave the temp around 62-68 in the winter. I got lucky I guess. Link to comment Share on other sites More sharing options...
Hobbit Posted January 6, 2021 Share Posted January 6, 2021 I use one of those shop lights as well, 40w incandescent. Mine’s about 12” away and at an angle. I only turn mine on during the day. I don’t need 24h light and heat to get good hatch rates, but I do get better hatch rates with some light. Link to comment Share on other sites More sharing options...
Billfromtx Posted January 7, 2021 Share Posted January 7, 2021 It was the heat from the lamp. A large hatch rate in just 24 hours. Thanks guys! 5 Link to comment Share on other sites More sharing options...
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