I am going to do the same thing tomorrow. Pick up some RCS. I think the ph has to be above 6.5 but mine is steady at 6.5. Any thoughts on this? Mine is well planted -ish 10g with 6 tetras. Any tips on acclimating?
For the original poster - stay away from rcs in your setup, they'll be an expensive snack for your fish. Ghosts or amanos might be ok, just depends on the individual fish. The congo would especially concern me as far as snacking on the shrimp, but honestly, congos really need to be in groups of 5+ of their own kind, and they really need a much bigger tank, so if it'd be possible to trade him in on some of the plants or shrimp you're looking for, that would be in the best interest of the fish.
Anyway, back to the shrimp - amanos and ghosts are both bigger than rcs so less likely to get snacked on, and their coloring doesn't make them quite as obvious of a target as rcs. Keeping the smaller shrimp with fish of any kind is a crap shoot. The fish may instantly go after your shrimp, they may never bother them, or they may go a year or more before you come home one day and find your entire colony wiped out (I speak from experience here - over a year building a colony of orange neos in a tank with a few guppies, they all totally ignored each other. One day, came home and there were no bodies but only 3 or 4 shrimp left - still wouldn't have believed it if I hadn't seen one of the guppies stalk and kill/eat one of the "survivors").
Plantetra - you are correct that rcs prefer a higher ph. The bigger issue though is likely your gh. When the ph is low like yours is, you're more than likely also going to have softer water. You may be able to acclimate the shrimp ok, but the soft water prevents them from being able to molt/rebuild their exoskeleton properly and they die. Test your gh and kh before jumping into anything. They're more expensive (especially considering they're going in a tank with fish), but crs may be better suited to your water.
JustgenGametheory - They had plenty of hiding spots - carpet of dhg, several differing sizes of crypts, flame moss, peacock moss, red "moss", ludwegia, cabomba, and a few other plants I can't remember off the top of my head - plus lots of driftwood. And they were fine for a very long while, the fish didn't even mess with the babies (at least not enough to make a difference), then one day they discovered that shrimp = food, and once that clicked, it was over!
Plantera - the crushed coral will definitely help you out, but the problem you'll run into is doing water changes. The water you add back in is going to be as it comes out of the tap, not as it is in the tank. It will over some time adjust up due to the coral, but the up and down fluctuations are very hard on fish and inverts alike. You'll be way better off either going with shrimp that are suited for your conditions (not rcs), or using one of the various additives that you mix in the water to up the hardness and ph. The good news for you is, the additives are way more effective at bringing hardness/ph up and maintaining it there than they are at bringing it down (which, unfortunately, is what I need - my ph is 8.3 and kh is 18 to 19).
Even for Neon Tetra???Shrimp are natural food for fish, sooner or later they will be lunch and dinner
My large neon tetras show no interest in any of my shrimp,,,, yet.Even for Neon Tetra???
I hope this doesn't infringe on any forum rules, but here's some information on another forum from a quick google searchDoes anyone know if Holey rock will help in maintain the water buffer? I have 6.5ph and close to 0 kh and 75 gh.