ahhaha, 4 cherry only of course no appetite , shrimps like human, have to live in group , just 4 will stress them out.
Don't always go for red, try some orange or yellow fire shrimps.

i keep 40-50 rili + 8 or more rabbit snail in a 18L cube tank. you need more tenants in 11L tank.
Or get some small fish like dwarf rasbora or boraras Brigitte in there, will look nice in office tank.

safe if you follow limit, bw growth is liquid carbon like co2.
You seem to killing lot of shrimps since you starter shrimp keeping.

Those black honey cone sponge filter is 60% effective only. Sure go in as the shrimplet like to savage for food at these sponge.

Still normal for starter. Read more on shrimps online.
Try to locate what your tank problem. As everyone tank is quite unique. You have to do your part in tackle the problem.

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both situation have the same effect, so observe if there any dying.

We all kill shrimp before and I lost count how many perish in my hands.
Everyone tank is unique due to different setup.
Generally for newbies start with easy shrimp of the neocaridina type like cherry, fire red first and malaya shrimp.
Just a general guide line for cherry
Ph 6 - 8.2
Gh 4-8
Kh 0-2
Tds 160-240
Temperature 22-30c (optimum not more then 29c)
Ph you can control using soil as buffer or add additives like Benibachi ph up powder will only increase ph.
New soil like Ada amazonia and shrimp soil will buffer water to lower ph like 5.5-6.5.

First thing ahout shrimp tank is tank MUST BE CYCLED.

Some claim yes some said no. As I said before every tank is unique due to setup, size etc.
Anubias poison basic is when the stem/leaf is damaged/trimmed the sap that leak is poisonous to shrimps.
So is upto you to decide. For me I don't like anubias and I take safe better then sorry path esp if the tank is full of expensive shrimps.
One things about plants in tank with shrimps is that you must be careful in adding new plants , alot of plants is grow emersed in farm and be spray with pesticides and fertilizers that are fatal to shrimps. Any new plants need to know the source and be quarantine. If buying from direct seller, ask them it is safe for shrimp. If from shop better test the plants in a bucket with one shrimp first before introduce in your tank else you risk wipe your whole colony.
Actived carbon can remove fert and pesticides. Put them in the filter of the quarantine tank.
Fyi. We normally wont add in any new plants in established shrimp tank.

Can just give a basic guideline as parameters vary for different type crystal shrimp.
Ph 6.2 - 6.6
GH 4-6
KH 0-2
Tds 100-150

i check TDS more often, as too high TDS in water if it doesn't come from mineral addtives/rock , it reflect pullution in the water.
Sera test kit is ok , i'm using Sera GH tester , just take sometime to read the instruction manual.

Bacteria need to build up itself in your tank, it take time, to speed it up, you can add bacteria water and additives to promote bacteria growth, ample of oxygen in water during initial cycling will help a lot.

Some filter media like ADA bio rio and Biohome plus come with added bacteria in dormant state.

TDS use test electric test pen.

i'm refering to basic normal grade crs upto grade s, higher grade more fragile.

i have grade A crs.

Cold temperature of at least 25c is a basic must.

newbie better don't try crs first , these are not beginner shrimp to begin with unless you don't mind paying hefty lesson fees, Begineer shrimp like Cherry is a good try , market price is rm1-2 per tails, and you can find them in most lfs that sell shrimp.

No lfs selling them in kl as far as I know. Most don't know what they are . You best bet is in Singapore and online.
their really beautiful though

i have 8 of them, got them from a friends who smuggle them from Japan in a small bottle.
i transferred them a big 2 gallon tank, one berried, but now they all hide inside the stone cave, with algae around tank, they hardly come out
to feed on the food i give them.



Their previous small home.

Not full salt water but brackish water with salinity around 1.016.(like half marine strength)

i use base on the number of shrimp in the tank , normally one to two small pellet for each shrimp enough.

depend , sometime alternate day. it depend on the level of algae and biofilm in the tank, if your tank filter is running, there should be constant supply of biofilm.

It is carpet marimo ball , these marimo be cut open to become carpet.
You have around 4 male fire red there, one or two got good color as well. Maintain your tds at 160-200, they will breed like mad.

rm10++-rm30++ depend on size. Try get online then.

These are crystal red shrimo, require cold water 23-25c .
beside other parameters to be meet. Not a beginner shrimp.

Your tank worm problems, so far the first time i see it during cycling, are you using recycled soil ?
All my tank i only saw shrimp cos worm need underneath the soil.