The temo needed to kill ich is too high for most tanks. ANd the method I posted us likely fo dangerous for most fish.
Speeding up the life cycle makes it easier to kill the ich unless you use a chemical that kills it in more stages of it life cycle.
The heat must be combined with something else unless you can follow the method I posted about. I have bokmarked an Ich paper published in 2011:
| Picon-Camacho, S.M., Marcos-Lopez, M., Bron, J.E. and Shinn, A.P., 2012. An assessment of the use of drug and non-drug interventions in the treatment of Ichthyophthirius multifiliis Fouquet, 1876, a protozoan parasite of freshwater fish. Parasitology, 139(2), pp.149-190. |
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S U MM A RY
Infection by the ciliate protozoan Ichthyophthirius multifiliis Fouquet, 1876 causes significant economic losses in freshwater
aquaculture worldwide. Following the ban on the use of malachite green for treating food fish, there has been extensive
research aimed at identifying suitable replacements. In this paper we critically assess drug and non-drug interventions,
which have been tested for use or have been employed against this parasite and evaluate possibilities for their application in
farm systems. Current treatments include the administration of formaldehyde, sodium chloride (salt), copper sulphate and
potassium permanganate. However, purportedly more environmentally friendly drugs such as humic acid, potassium
ferrate (VI), bronopol and the peracetic acid-based products have recently been tested and represent promising alternatives.
Further investigation, is required to optimize the treatments and to establish precise protocols in order to minimize the
quantity of drug employed whilst ensuring the most efficacious performance. At the same time, there needs to be a greater
emphasis placed on the non-drug aspects of management strategies, including the use of non-chemical interventions
focusing on the removal of free-swimming stages and tomocysts of I. multifiliis from farm culture systems. Use of such
strategies provides the hope of more environmentally friendly alternatives for the control of I. multifiliis infections.
Tou can read the paper here
http://dspace.stir.ac.uk/bitstream/...macho et al Parasitology Ich chemo review.pdf
If I remember correctly they report on over 70 treatments. Many do not work well or at all.
Table 1. Chemical treatments tested against infections of Ichthyophthirius multifiliis Fouquet, 1876
(A compound is regarded as being partially effective if it kills 50–80%, and effective if it kills >80% of the stages under test. Mortality refers to the parasite stages unless otherwise stated.)
The above table occupies 31 pages. That's a lot of tried and faileds. But a bunch are effective