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Baby Shrimp only???

Joined
17 Mar 2012
Messages
2,239
Location
Dorset
Some of the shrimp died off in one of my tanks but they’ve recovered quite a bit in recent months. I only ever see baby ones, no adults? When I had lots of shrimps I often used to see berried adults but I can’t see any now.
 
Funny enough, I did not see any adults for ages, then a load of baby shrimp appeared and then the adults started to reappear.

Not saying this is what you have, but I have observed something similar.
 
It’s very odd. Most of the shrimp in the other tank died out. As I mentioned in another thread I wasn’t too bothered as they were all mostly natural (boring) coloured The plan was to buy just one colour when they were all gone then readjust the water parameters. I did this then noticed a few adults in their natural colours! They’re now breeding and I’ve noticed lots of pink baby shrimp. No sign of berried adults in this tank either but I can see a few adults.
I’m just wondering exactly how big they need to be to breed?
In order to get some nice coloured examples I’m thinking I need to set up another small tank exclusively for one type.
I sometimes see small Black or Blue shrimp in the smaller of my two tanks so maybe I could transfer some over to the new tank.
I think I’ve always known just how good they are at keeping a tank clean. It’s not until I lost most of them that it reminded me. They do a really good job on the Anubias for example.
 
One of my tanks, they never grow what I'd consider full adult size, they are runty, but there is quite a few and they are obviously breeding as they've been in there years. If you don't already, feeding some shrimp specific food with the minerals included might be an idea... although has not really made a difference for me.
 
I just watched a marks shrimps tanks video where he recommends hydrogen peroxide treatment for exactly this - adult shrimp hiding all the time. He says in the video that it's often a bacterial problem and that dosing hydrogen peroxide to their tank directly can address the issue. Seems nuts to me given the lengths people go in order to grow biofilm in shrimp tanks that will be wiped out by hydrogen peroxide treatment but he seems to be a pretty successful shrimp breeder. I've used hydrogen peroxide dips for plants before (even quite strong solutions don't harm bucephalandra) but I would be very wary of dosing it into my tank but I know many people do apparently without problems and there's a lot of very positive comments on the video. Here it is just for informational purposes, I don't think I'm qualified to recommend this for shrimp.
 
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