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    • sdlTBfanUK
      The PH of my taiwan bee tank did go up from starting point PH5(ish), all the way to nearly 8 (over a year), though it didn't seem to affect the shrimp bizarrely. I had rock in the tank and removed that and was then reducing the PH sowly with weekly water changes. I think there is a lot more to PH, it naturally changes through day and night for example (I always test mine midday), KH, rock, substrate so I don't have a complete understanding on it all and as you now don't have that same setup I would forget about that aspect anyway. It sounds like you have got to the point you want to be, ie not havng to keep changing substrate! I completly get what you are sayng about the old setup/substrate but can't personally help any further, hopefully somenoe else may have more of an understanding and reply? Simon
    • haroutvartanian630@gmail.c
      Oh yes , i know that gh kh now is increasing my ph, thats why im using it. Without adding gh kh mineral , my ph is 5.5. Once i add the gh kh and gh mineral mixture, my ph goes to 6.5.  The substrate thing really has my mind turning. Nothing in my tank changed other then the substrate. But forget the tank for a second. Ro water mixed with gh mineral is about 5.5 and that is whats meant to be used with active substrates. And active substrates like amazonia and fluval are supposed to give you a ph of 6.5. So doesnt this mean they are raising the ph? You yoursellf said your ro water has a ph of 5.5  and im sure your crystal red tanks ph is higher then that, right? If they were to lower ph , then everyones crystal tank would be like 5ph, do you know what i mean?
    • sdlTBfanUK
      I think you will find it is the GH/KH+ that is increasing the PH as it is meant/designed for shrimps that prefer a higher PH, cherry shrimp etc. You can check by testing the PH  with just GH+ added and then testing again after adding the GH/KH+? KH1 should be fine for crystal shrimp, but keep a regular eye it doesn't go up with your new routine. KH does help stop PH fluctuations. I think you are getting the best results with what you are doing and I would stick with that. You may not need to change the substrate again if this works long term. I'm certain it is just the GH/KH+ that is increasing the PH and adding KH1, which is fine! I understand what you are saying about your previous substrate but I haven't used that one, or maybe something else was increasing PH, rock, stone etc? I wouldn't worry too much about that now though. Simon
    • haroutvartanian630@gmail.c
      thanks for the reply, I guess im worried because everyone say do not use any kh when it comes to crystal red shrimp. Im also worried that i might be getting ph swings when im not recording because i dont have buffering substrate or enough kh. I only have 1kh. The Ph of ro water after it sits is about 5.5 and it goes up to 6 depending on the ratio of gk and kh i use. Ive found that 50 tds worth of salty shrimp gh kh mineral and 70 tds worth of gh mineral givs me an tds of 120 , kh of 1, gh of 5, and a ph of 6.5 which should be ideal for crystal red, dont you think?  When it comes to active substrate, fluval stratum to be exact. For instance , ro water mixed with gh mineral only is 5.5 like we both pointed out. When the fluval stratum keeps the ph at 6.2 , doesnt that mean it is raising the ph? When i removed the stratum, my ph dropped down to ro water ph and went back up when i added kh gh mineral. This could only mean the active substrate raises or lowers ph , depending on what it needs to do to get to 6.2. right?
    • sdlTBfanUK
      I think the old saying 'if its not broken don't try to fix it' applies here. If you have a neutral substrate (like gravel etc) and you have managed to get the ideal parameters using GH/KH+ and GH+ mixed, that is clearely the best all round for you and you won't have to change the substrate again at any point in theory so stick with that! When I filter my water to RO the PH of the water drops to 5-5.5 from 7-7.5 (from the tap). That may be why you got such a low PH reading with the neutral substrate. I don't think active substrate will increase the PH as it buffers by 'absorbing' but to increase it would have to 'release', but I may be wrong........... Try testing the PH of the RO water before and after adding GH/KH+ and GH+ mixed. I know you are aiming for PH6.2 but don't get too fixated on that as you may do more harm than good with keep altering the PH. My taiwan bees did ridiculously well in PH5-5.5 anyway? I am a little confused why you want to change anything when  you already have it perfect/worked out? Am I missing something? Are you getting deaths or sick shrimp? Simon
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