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First tank dosed! I'm not flapen around! I had thought maybe copper a few months ago but I did not want to just experiment I figured someone out there with shrimp would have an answer for me! Doing a happy dance right now

Hi! I've just started a YouTube channel, and my first video is of my 8 month old no filter Jarrarium. Nothing in-depth, more about the aesthetics...and the cherry shrimp ? Subscribe if you like it, as I'll be posting more videos of other tanks, updates on tanks etc. Take a look and let me know what you think! Would be good to get some knowledgeable opinions! Thanks?

Found a 4oz bottle of mardel copper safe on my medicine shelf! To think the solution could have been feet away the whole time!

Love is in the air! Thank you so much. I don't care about anything left in the tanks. I just want to never see a scud again! I figure anything that kill them will probably kill everything else including the fish. I j7st dont want my plants flaped. Im going to give this a go in my overrun ex shrimp tank. Cannot get a worse infestation than that! I use a plenum in all my tanks so getting it through the substrate will be easy and also to rinsing it out. With panacur c treatment for worms it will last 2 months minimum if you don't flush well. I had snails die I put in a month after treatment. But it works miracle in shrimp tanks with planaria. Ok I'm going to figure this out maybe even hit my first tank today with a dose of copper.

I had a quick look on Amazon and they seem to sell copper sulphate if you get stuck! One other thing occured to me, can you ramp up the heat and cook the buggers, I have had heaters stuck on twice and it has not killed the plants but has killed shrimp on the first occassion and fish on the second? You could try that in one infested tank and if it works then try the others? If you reduce the wate level as JayC recommends for the copper sulphate that will help do this too, less water to heat, you could even boil some dechlorated water in a kettle to speed the process up but pour that well away from the tank glass? Just a thought anyway! Again you could try putting some scuds in a container with a heater to find out whether it works and what the temperature required will be first??? Simon

Healingeagle, sounds like you are at a point of declaring war on the scuds. One effective chemical that will kill scuds is Copper Sulfate. You can find them in crystals. Don't ask me where you can buy them from. I spend my whole hobby lifetime avoiding copper, so when it comes to acquiring them ... I have no idea. Actually, try garden stores. They will have some. 0.15 to 0.2ppm is the suggested treatment level. You can also use chelated copper as well. Some argue that chelating drastically reduces the effectiveness of copper, citing the loss of positive charge of the copper ion that has long been held to be the reason that copper works in the first place. This argument seems buttressed by the fact that chelated coppers require a much higher dose to be effective. (The recommended dosage for most of these products is a target value of 1.5 to 2.0 PPM. The obvious difference is that chelation allows use of copper at 10 times the dosage of non-chelated copper.) BUT !!! Any treatment on scud is going to impact shrimps and other invertebrates as well. So if you are going to try copper, move out as many shrimp as you can into a bare bottom tank temporarily. A bare bottom tank is so you can see any that might have moved across, one or two can be siphoned out easily. Do not come back saying that your shrimps have died. This is fair warming. On the plus side it will also treat algae. But some simple plants like mosses might also be affected. Higher order plants should be fine, or so I've read but don't blame me if that is not true. Like I said, I have avoided all traces of copper in my tanks as much as possible, so I wouldn't know. ? Additional tips: Scuds will also hide in the gravel/substrate, so if you can ... stir up the gravel during the copper treatment. Use a gravel vac during water changes. Get a copper test kit. You will need that to maintain a 0.15ppm - 0.2ppm (non chelated copper sulfate) or 1.5-2.0 ppm level (for chelated copper sulfate). And to test for copper after treatment to ensure it is safe for the shrimps to return. Any residual traces will also kill the shrimp. Copper sulfate has a propensity to precipitate out of solution rapidly or to "bind" to other ions in the water. So re-treatment is needed after a few days. I would leave this in the tank for at least a week to be safe. Then do a water change and re-treat for another few days if you fear them coming back. Remember, they can hide deep in the substrate. So as per tip 1 above, stir it up a bit if you can to get the copper treated water down into the bottom levels of the gravel/substrate. Reduce the water level in the tank as much as possible to reduce the amount of copper used. You have quite a few large tanks there. Any tanks that don't have plants and shrimp should be drained completely and the substrate should be boiled. Or pour boiling water on the gravel straight from a kettle.

Sorry to hear your having problems. I don't know of a chemical solution as they are pretty much the same as shrimps so any treatment would likely also kill the shrimps. I know you say not fish but that is what I would do. I had an infested tank with seed shrimp and the (killie and maybe dwarf rasbora) fish wiped those out in days. Once you feel the scuds have been cleared you can then remove the fish much easier than trying to catch all the scuds as well. If you have several tanks then just move the fish between the tanks to drastically reduce or (hopefully) wipe the scuds out? As you say, you likely will lose some baby shrimps but as long as the tanks have enough places for the shrimp babies to hide you should be ok. My oldest tank has had lots of tetras (neon and ember) over the years and there hasn't ever been any shortage of baby shrimps, but they are small tetras. I had some waterlouse get into the tank (I believe they are what you call scuds???) when I started it and added leaves which I got from a pond which the louse must have been on, and I re-set the tank and thankfully haven't seen any since but thats a lot of work and not gauranteed to work or rid them all, though it should, as long as you use all new stuff? I understand why you don't want to use fish, but I would try fish in the tank (do 1 tank at a time, try it out with the new tank that hasn't got shrimps in it yet but does have scud) and move the shrimp out to another temporary scud free (bare maybe) tank when the fish are added to the relevant tank? I don't believe scud kill shrimp but probably out compete them for food? I hope someone here will be able to offer you an easier non fish solution? Simon ps, sorry for recommending fish (temporarily) after you said you don't want to go that route, but if nothing else works it is a cheap, safe and fairly straight forward/easy possible solution???

End of day 1 !! A lot of backwards and forwards, of course we changed the design (even though the steel was cut and delivered) but I am pretty happy with how it is going so far.

To give you an idea 210 Gallon, 2 x 125 gallon, 2 x 120 gallon, 2 x 75 gallon, 4 x 40 gallon 65 tall, plusses many small tanks. CHEMICAL OPTION NEEDED

How do you suggest I move thick cryptocoryne there is no way to clean this. Ripping up all my tanks and throwing everything out I cannot boil or bleach is my option if someone does not have a chemical fix for me. Fish do not work at total elimination. I have tried moving and cleaning and they come back. To stop them from the new tanks I woukd need to be OCD CLEAN and that's not going to happen with me. They are eventually going to infect the tanks. So does anybody have a CHEMICAL SOLUTION to kill scuds(gammarus shrimp) or know something that would wipe out regular shrimp I could try? I've spent so much time trying to find a solution for this someone needs to have something to help please please please.