I have a colony of cherry shrimp in my 5.5gal with a pair of Pseudomogil gertrudae, a pair of Epiplatys dageti, a swordtail fry, a feeder guppy, and the tank is filled with java moss. I can't seem to keep a solid colony even though I've gotten lots of babies in the past... it seems like the shrimp have just been dying off. Initially I thought that I was letting this tank get too dirty, but I've been doing water changes a lot more frequently in the past few months. I have an airstone and a Nano HOB filter on the tank.
I just checked the levels and the water is really soft (GH=25 ppm, KH=40ppm with a Jungle test strip), the pH is 6.8, and the temp usually stays around 80 deg F. Is it possible that it's too soft for them? What do you guys use to harden your water? I have some SeaChem Equilibrium that I've been thinking of using on all of my tanks, but I've been hesitant because I don't want to make the water too hard for my SA soft-water-philes. Do you have any other thoughts?
Geezz I wish I could just have soft water like your without buying the RO unit heheheh
.. the cherrys are dying off ?? did you see the physical dead bodies ?? since they might get eaten off by the fishs. Sudden changes of temp, too much water changes could kill the shrimps tooo ..
To harden the water a little bit, you might want to add some crushed corals and that should do it . If you want, I could bring you a little of my crushed coral for you to use since I have some african cichlid tanks and they all have crushed coral as their gravel base ..
The temp of 80 is kinda high .. I kept my shrimps at around 72-76 max
I used to have a lot of problems with cherrys but I got a hang of it now and they are breeding very well in my cherry only tank