Holtfreter's solution

Holtfreter's solution is a specialized aqueous solution used mostly in aquaria to prevent infections for early stage amphibians. It is typically mixed with soft tap water.^[1]^[2] Amphibians such as axolotls find a hard water solution more preferable.

Composition

Molarity of the component salts are as follows:

NaCl	0.059 M
KCl	0.00067 M
CaCl₂	0.00076 M
NaHCO₃	0.0024 M

Notes

↑ "Axolotls - Requirements & Water Conditions in Captivity". Axolotl.org. Retrieved 2011-03-29.
↑ "Indiana University Axolotl Colony". Ambystoma.org. Retrieved 2011-03-29.

https://www.msu.edu/user/eisthen/lab/methods/animalcare/holtfr.html [link now dead]

References

Armstrong, J.B., Duhon, S.T., and Malacinski, G.M. (1989) "Raising the axolotl in captivity". In J. B. Armstrong and G. M. Malacinski (eds.) Developmental Biology of the Axolotl. New York: Oxford University Press, pp. 220-227.

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