Yes, that makes sense (if you're adding water).
The OP's question made me think of this piece of property for sale that has a really great large pond on it (it abuts a forested park). I'm always wondering if that pond could be used, as is, for fish or if anything would need to be done to maintain it. Of course, I will never be able to buy that property in this lifetime, but in my next one, I would do readings and such just to see where my levels were.
But I'm left wondering if a natural pond is fish-ready. Common sense tells me yes, after careful acclimation, but I may be entirely wrong on this one.
75: blood parrots, featherfin cat, emperor tetras, turquoise rainbowfish, BN plecos, japanese trapdoor; 46: WCMM, gold inca snails, ghost, bamboo & amano shrimp, kuhli loaches, rummynose & ember tetras, endlers, platies, flame gourami, guppies; 16: pygmy, peppered, loxozonus corys, otos, assassins, RCS ... ~ Research PRIOR to purchase.... ~