Are you indicating that you are not aware of exactly what your water parameters are? pH = 7.Something? Most any place you visit on the web that has information on the care of german blue rams will indicate that they are indeed a softwater fish. While it is true that many fish will adapt to differing Ph values so long as those pH values remain stable,, The German Blue Ram isn't one of them. They do poorly in the long run in basic alkaline water with pH values much above 6.8. They are one of my favorite fish and I am always saddened by the fact that many people insist on keeping them in water that ultimately results in their death.
If I wished to keep this little warrior long term, and my water was perhaps a bit too alkaline , I might consider mixing a 50/50 mixture of RO/TAPWATER in a seperate tub and measure the pH and kH after the water was aerated and see what those tests indicated. If the water was suitable, I would use this water for water changes which would slowly ,overtime, render water more comfortable for the fish and spawning's I think you would find would be more succsessful.
If none of this interests you, then perhaps the Bolivian Ram would be the fish I would suggest.
Ultimately,, It's your tank, your fish. Of this I am aware. My only concern is for proper care of one of the prettiest fish I have ever cared for and one of the most sensitive in regards to water quality.
