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Edit: Alright, so I did a 50% water change and it droped the KH to 89.5ppm and the GH to 250.6ppm
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Well not really off the charts

a KH of 89.5 ppm or a dKH of 5 is great.
a GH of 250.6 ppm or a dGH of 14 indicates
water that is "fairly hard"
Fish are very adaptable and would be perfectly happy in "fairly hard" water, however they probably would not "spawn" if their preference is for less hard water.
Mineral uptake of calcium and magnesium by plants in a well planted tank will drop the GH some.
If you are uncomfortable with the water hardness, the best way to reduce it is to dilute the tap water with Bottled water or RO filtered water. This will also affect your KH and pH so some fiddling will be required.
I would be curious to know the basic set of Your tank parameter numbers.
Regards,
Jay