What are your water parameters? Do you have plenty of flow in the tank or is the water stagnant in certain parts of the tank?
Use a remineralizer, like Shirakura Ca+ or Fluval mineral supplement.The tank's been up for at least 6 months, how do you raise GH?
Aged water is an old school practice in the hobby however it does not address anything other than chlorine. If your local water treatment facility uses chloramine to treat your water so that it's drinkable, you will want to use a water conditioner to break the bond of chloramine, which inhibits the proper intake of oxygen in fish and other aquatic life (except plants). If they use chlorine, the best thing to do is age (let it sit) the water from the tap for a few days. Chlorine will evaporate in that amount of time. Chloramine will not no matter how long you age the water. this also goes for heavy metals and all other nasties we find in water that make up TDS.Thanks for all the helpful information everyone! I'll try and get fluval mineral supplement today.
Acitydweller, about the heavy metals, recently I havn't been using any water conditioner because I was told aging your water gave you the same benifits. Should I start using prime?
+1 i concur with Overgrowth. i have used both with great success. FMS is more readily available while Shirakura is offered by some of our beloved sellers on Sns. I happily purchased mine from Morphadalus.Use a remineralizer, like Shirakura Ca+ or Fluval mineral supplement.
If its recommended not to alter PH, then it would seem this post begin and ends in contradiction. Crushed coral will increase TDS however it is primarily used to raise PH.You can also use crushed coral in your filter. Much cheaper than the mineral supplements.
How often are you doing WCs? And how large are they? Maybe you're stressing the shrimp with WCs.
pH at 7.8 is fine. That's what mine are at and they're thriving. And if yours have been living in 8+ for this long without a problem, then I wouldn't go monkeying with the pH, especially now while your shrimp are stressed.
Add an airstone to improve oxygenation. I have mine at the very top of the water so as not to cause too much current.