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Black Beard Algae is a common problem in aquariums with well-know causes and cures, so I don't think this should be adding too much additional stress to your situation. One of the causes is excess nutrients in the water, and so this suggests that the overall problem might be water pollution from either overfeeding, or bits of food that settled somewhere. I don't say this with a tone of "ah ha, I know exactly what your problem is", but only as a suggestion for how to approach the situation in terms of "doing things that should be good for the tank regardless". With that said, here is what I would do: (My own tank is starting to have problems with inactive shrimp, so I will end up doing some of these things as well) Reduce overall feeding, and try to limit to foods that won't get everywhere and even if it did would not decay. So for example, spinach leaf instead of Shrimp Baby. Maybe increase water change frequency, but be careful to drip it back in slowly. As for your TDS issue, I would only compare input water TDS to tank water TDS. Occasional H2O2 dose (the food grade version, lol)

That should be ok. It will vary depending on the type of shrimps as Bee shrimp aren't as resilient as cherry but that is a few degrees below any upper limits! I kept bee at 23 and currently keep cherry at 25 (alow for reliability of equiipment though)! You don't want the temperature to fluctuate too much either so in a high temperature region you will need tto keep it a bit higher as you don't want the temperature to fluctuate between air con off/on periods too much either! Simon

So I have 5 Bloody Mary Sakura females (maybe one male in there but unlikely) and I’d like to add in a male just to keep the population going. Definitely not trying to sell or create too massive of a colony. The place I got the females from just doesn’t have many (or any) males available. When I purchased the shrimp I asked for a couple males but likely didn’t get any (juvenile females). So what other lineage would you consider adding that wouldn’t alter color too much or would potentially lead to other colors? I realize a Bloody Mary male would be ideal, but I’m not sure one is available locally to me. I suppose I could also try and order some online as well if needed. Sent from my iPhone using Tapatalk

Sorry if wrong section..don't know where to post..I want to ask.. I put my aquarium in my room and at night I on my aircond from 1am to 1pm at 24°c..is it ok for the shrimp..btw i live at malaysia

I totally get it!!!! I spent a small fortune on my shrimps and they just died off each time, no idea why so got the fish for now instead and they are doing well at the moment. I saw 1 shrimp in there the other day! I may try shrimps again when we get back to normal, but lets be realistic thats a way off yet anyway! If you don't use ANYTHING from the current tank with the new tank, that new one may work out better as whatever it is probably won't be in that tank if you have a clean start and don't use anything from the trouble tank? Simon

I keep bee shrimp..as you said need to keep abit higher so what temperature you recommend so not fluctuate to much..

Oh, alright. Just asking cause I actually have A few tang tigers I ordered by mistake. EDIT- Oh sorry bro, idk what I was reading lol. For some reason I thought you where considering ordering some tang tigers, and I was offering to send you some if needed. But I just reread your post and it says nothing like that

Hold out until you find male Bloody Marys. You don't want to alter the BM lineage.

Yeah, don't use it. Definitely stick to one drop of oil to 90 drops water for dilution. Since you have the shrimp separated, you could try treating externally. Then move to back to oil soaked foods, if the shrimp improves.

Why not try just putting some active substrate into A small Tupperware container, and then putting water into the container before actually putting it into the already established tank? Or Use A waterfall style filter, and add active substrate behind the filter of just putting the new active substrate in the filters place entirely? That way you wouldn’t need to worry about it destroying anything or even messing up the tank throwing substrate everywhere?

This is very true, but I’m pretty sure the areas of white and blue don’t actually change right? So the areas of color will not change but the depth of brightness of those colors will?

Portland, OR area Sent from my iPhone using Tapatalk

Where are you from if you don’t mind saying

There are other sources of Calcium for your shrimp apart from dosing Calcium sulfate or dropping shells and cuttlefish bones into the water column. These sources come from the foods we feed the shrimp. These are all natural sources of food, so should be okay to feed your shrimp, just be careful you wash them properly and ensure no fertiliser/chemical residue is on the veg/fruit. If you grow it yourself, you will be sure of what was sprayed on the plants. Here is a list of vegetables and fruits by mg of Calcium content per 100gm of food. Vegetable (mg Ca) Arrowhead 1 Chives (per tablespoon) 2 Peppers, Sweet 6 Alfalfa sprouts 10 Pumpkin leaves 15 Asparagus 14-28 Coriander (cilantro) 16 Chard, Swiss 18 Radish seed sprouts 19 Lettuce, Cos, Romaine 20 Lettuce, Romaine (100g) 20 Squash, Zucchini 20 Jerusalem artichoke 21 Pumpkin 24 Endive 26 Squash, Summer 26 Cauliflower 28 Purslane 28 Radishes 28 Carrots 30 Eggplant 30 Cabbage 32 New Zealand Spinach 32 Kohlrabi 34 Lettuce, Looseleaf 38 Peas, Green 36 Turnips 39 Cress, garden 40 Watercress 40 Broccoli 42 Mung bean sprouts 42 Celery 44 Beet greens 46 Snap beans 46 Parsnips 47 Spinach 56 Mustard Greens 58 Green Onions 60 Peas, Edible pod 62 Rutabagas 65 Celeriac 68 Chinese cabbage 74 Parsley 78 Salsify 80 Borage (Starflower) 82 Okra 82 Kale 94 Lettuce, Iceberg 102 Dandelion greens 103 Turnip Greens 105 Kale, Scotch 137 Chicory greens 180 Mulberry Leaves ~200 Collard Greens 218 Fruits mg Ca Plum 4 Peach 5 Nectarine 5 Casaba Melon 5 Blueberries 6 Honeydew Melon 6 Banana 6 Cranberries 7 Apple(with skin) 7 Pineapple 7 Persimmon 8 Watermelon 8 Mango 10 Grapes 11 Cantaloupe 11 Pear 11 Grapefruit, Red & Pink 11 Grapefruit, White 12 Apricots 14 Tangerine 14 Strawberries 14 Sweet Cherries 15 Raspberries 22 Papaya 24 Lemon (peeled) 26 Kiwi fruit 26 Blackberries 32 Lime 33 Orange 40 Seedless Raisins 49 Just a word of caution. These foods contain Phosphorous and could have an ill effect on your water quality. It might even cause an algal bloom if the levels of phosphorous become too high. Common sense applies when feeding ... not too much too often, and if there are any leftovers, remove it. For those Phosphorous conscious people out there, this is a table of Calcium to Phosphorous ratio: Calcium:Phosphorus Ratio - Vegetables 14.5:1 -- Collards 10.0:1 -- Mulberry Leaves 7.5:1 -- Spinach, Mustard 4.5:1 -- Turnip Greens 4.3:1 -- Lambsquarters 3.2:1 -- Dill Weed 3.0:1 -- Beet Greens 2.8:1 -- Dandelion Greens 2.8:1 -- Chinese Cabbage (pak-choi) 2.7:1 -- Lettuce, LooseLeaf 2.4:1 -- Mustard Greens 2.4:1 -- Parsley 2.4:1 -- Kale 2.1:1 -- Chicory Greens 2.0:1 -- Spinach 2.0:1 -- Watercress 2.0:1 -- Cabbage 1.9:1 -- Endive 1.6:1 -- Celery 1.5:1 -- Purslane 1.4:1 -- Cilantro 1.4:1 -- Lettuce, Butterhead 1.3:1 -- Okra 1.1:1 -- Swiss Chard 1.1:1 -- Turnip 1.1:1 -- Chard, Swiss 1.0:1 -- Squash (winter, all varieties) 1.0:1 -- Green Beans 0.8:1 -- Lettuce, Romaine 0.8:1 -- Sweet Potato 0.8:1 -- Rutabaga 0.7:1 -- Broccoli 0.7:1 -- Cucumber (with skin) 0.6:1 -- Carrots 0.6:1 -- Squash (summer, all varieties) 0.6:1 -- Carrots, Baby 0.6:1 -- Brussels Sprouts 0.5:1 -- Cauliflower 0.5:1 -- Kohlrabi 0.5:1 -- Pumpkin 0.5:1 -- Alfalfa Sprouts 0.5:1 -- Parsnips 0.5:1 -- Peppers,Green 0.5:1 -- Peppers,Red 0.4:1 -- Sweet Potato Leaves 0.4:1 -- Beets 0.4:1 -- Asparagus 0.2:1 -- Tomato .02:1 -- Corn, White Calcium:Phosphorus Ratio - Fruits 4.8:1 -- Papaya 2.9:1 -- Orange 1.8:1 -- Lime 1.8:1 -- Raspberries 1.6:1 -- Lemon (no peel) 1.5:1 -- Blackberries 1.5:1 -- Grapefruit, White 1.2:1 -- Grapefruit, Pink and Red 1.2:1 -- Tangerine 1.0:1 -- Pineapple 1.0:1 -- Pear 1.0:1 -- Apple (with Skin) 0.9:1 -- Mango 0.9:1 -- Watermelon 0.8:1 -- Cherries, Sweet 0.8:1 -- Grapes 0.8:1 -- Cranberries 0.7:1 -- Casaba Melon 0.7:1 -- Apricots 0.7:1 -- Kiwi 0.7:1 -- Strawberries 0.6:1 -- Cantaloupe 0.6:1 -- Honeydew Melon 0.6:1 -- Blueberries 0.5:1 -- Persimmon, Japanese 0.5:1 -- Raisins, Seedless 0.4:1 -- Peach 0.4:1 -- Plum 0.3:1 -- Nectarine 0.3:1 -- Banana So Collards are a good choice as they have a high Calcium to Phosphorous ratio While Bananas are not such a good choice as they a low Calcium to Phosphorous ratio.

I am not using fertilizer. I’m just wore out, abs I’m half regretting starting another tank.... Sorry, just very frustrated

I’m not aware of one. Update: I’ve now culled 4 shrimp. It’s heart breaking but this disease, whatever it is, is coming back with a vengeance. I don’t know what to do, and I’m really exhausted. Now I’m seeing tiffs of black bread growing. I don’t understand. I feed maybe 3-4x a week at this point, water parameters shouldn’t be causing immune issues. im ready to tear this tank down.