I have had a 20 gallon RCS tank for 3 years now. I have moss balls and some JAVA moss, drift wood, and mineral rocks.
Only RCS in the tank and some soft shell snails I have in there I breed for my fresh water puffer fish in another tank,.
My issue is that the shrimp live 1-2 years and they breed just fine but I never see babies. I see plenty of eggs but never babies. (Well 1 or 2 a month maybe but they disappear)
The adults keep going just fine until they die off of old age or something else.
I keep about 100 shrimp in the tank and have to replenish 50 every 6 months about.
Water Temp I keep about neutral.
PH- 7- 7.2
I use distilled water or sometimes Reverse Osmosis water because our tap water goes through a water softener which puts a LOT of salt in it which makes TDS very high so I try not to use tap water at all.
I feed every 2 days with Azoo or other good food and not much. Its all gone by the time I feed again.
I do add some powder food for the babies and a shrimp bacteria powder (just started that about 6 months ago but has not helped or hurt)
Someone told me due to the distilled water my issue is LOW TDS. So I bought TWO different meters. I tested the distilled water and its about zero which is correct. I then tested my water and its about 700. I do top offs and just did a 20% water change last weekend with distilled water.
So is that the issue? Should I pull out the mineral rocks?
I am thinking tonight to take about 8 gallons of water and drain the tank down about 40% and then fill with the distilled water. I can repeat the process in a week and once I get the TDS under 150 I can add a little shrimp mineral to get it to the 200 range. The reason I am saying that is the TDS could be bad TDS and not the minerals they needs. I ordered some Salty Shrimp Mineral which I heard was good.
Should I just give up?
I bought 7 RCS for my 2.5 gal tank yesterday (no filter/heater). I also have a marimo ball as well as some java moss. I was wondering if this no filter set up is okay for my RCS? This morning they were acting less active than yesterday. They weren't picking at the marimo ball or anything, and were all just standing still..
Over the last couple of days I have head some RCS deaths. One I am not sure why and the other one I felt like she was going to die as she could not moult (I could see her shell almost split in 2 at the saddle). All females in this tank are breeding exceptionally well and all other shrimp seem fine.
My water parameters are:-
6.6ph 0 ammonia 0 nitrites 10 nitrates 200 TDS (a bit high for my liking prefer around 170, so will bring this down slowly) I keep these RCS with my CRS shrimp. So I am just wondering if it is my setup that is causing these issues or just coincidence that these two deaths happened at the same time?