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@Fry4friends the shrimp pictured certainly doesn't look right. Have you read the Diseases and Diagnotics thread in Shrimp Health and Care forum? There are two know cures for brown spot. Levimiasole HCL and Carvacrol oil (oregano oil). Of the two I would try Carvacrol oil first, as it's easier to find. You can get them in health food stores. Where are you located? Follow the directions in the Diseases and Diagnotics thread. Even if we have misdiagnosed the issue, Carvacrol will have not harm the tank.

Adding potassium into the tank will raise TDS and KH and pH, so while you can add a very small amount into the tank without a drastic change to the parameters, it still wont be enough for the plant. So I would take the plant out and put it in a bucket treated with Potassium, then back into the tank. Go down to your local gardening centre or a hardware store that sells fertilisers. Look for something like this ... soluble Sulphate of Potash. It doesn't have to be the same brand. There should be directions on the back of the pack for dosage - use half dosage. Leave the plant in the bucket for a couple of hours each day and then move it back into the tank. A week of that should start showing some improvements. Then you can stop after that, until it starts browning again.

sorry to hear that. If you haven't disposed of the shrimp, could you take a photo of it close up, out of the water? We might be able to use it to ID future brown spot diseases if we have a good quality picture. You might want to continue with the oregano oil treatment, but maybe at half dose but double the timeframe.

update: after work I went and bought the oregano oil, came home and all the shrimp in the tank are dead. Crazy enough it turns out some babies hatched today too. So now I have a tank of newborn shrimp.

Okay, thank you, I will try that. Hopefully the little guy gets better.

Great information, Thank you

As for help, it is our pleasure and apart from my rambling JayC probably was more help! Fingers crossed the reds carry on doing well. I would go that proposed route of just trying to keep the reds alive in the old setup and concentrate on the new tanks setting up. I think it will be so much easier once you have the 2 separate larger tanks and you can look forward to buying more shrimps, though that is a way off at this stage. Simon

JayC has this better covered than I, but generally most think that no fertilizers with shrimp is best as shrimps are very sensitive. I know that sand/gravel has nothing in it for plants so I understand the wish to use them though! As you only have 1 moss ball and a bit of moss plus a few floating plants then there may have been a build up over time if there was too much for the plants to use! I have a 35L tank with about 26L water in it. I do 2L water change and maintenance once a week and the 2L is dripped in over 4-5 hours which is easy as you just set it up and let it drip away all day! Shrimp don't have much of a bioload and are very sensitive so it is best to do only a small change in quantity but slowly add the new water. I have 2 fish tanks (similar size to other tank) in addition which have cherry shrimp and I use the same dripper method, mainly because I have it so may as well use it and as I say it is easy! Simon

My apologies, yes I thought you meant Flourish Excel. 5ml of Flourish in 10gal is still too much. So please cut down. for the Salvinia Cucullata, yes. That will be the only major nutrient it is lacking in a freshwater tank. But do that in a separate bucket, as Potassium will alter the pH and TDS of the tank.

Also check out Brineshrimpdirect.com for food that can be used. https://www.brineshrimpdirect.com/algae-pastes/ Ideally, you'd want to start feeding from day 2 onwards. that's when the egg sac is depleted.

Great news I hope it continues to work out. I read yesterday that an amano can carry up to 2000 eggs? The book says they need salinity of 25g per litre. Larvae eat Liquizell or similar it says, whether that is any help I don't know. If you can get this working you might be able to make some money as these shrimps are probably the most used in the majority of fish aquariums? Simon edit - I found this which seems very informative. I get yeast powder and spirulina powder readily from sainsburys if that helps. http://aquariumbreeder.com/amano-shrimp-detailed-guide-care-diet-and-breeding/

LOL! Keep us updated Spongy. What are you planning on feeding them?