Lilia Stepanova wrote: <<<<< Tea as a softener?! Can normal tea be used as a softener? I mean normal Ceylon tea, no artificial anything? (...) (Just did it with my one of my tanks for some crazy reason and anxious to know what kind of effect caffeine will have on my fish!)>>>>> I strongly disagree with this sort of pseudo-experiment, especially considering the tea content of substances (alkaloids) which have effects on the nervous system. Experiments involving the welfare of animals should be based on the basis of some form of logic and of relevant need, not just to see "what happens if ....". Some people may even be more radical than that. Hopefully you were well meant, and hopefully you will reconsider your decisions. Peat is an easy to find and established mean to obtain black water, and I am sure you will be very happy with the idea to have done everything you can to avoid exposing your precious animals to unnecessary risks. Dionigi Maladorno firstname.lastname@example.org This message presents personal opinions which are not necessarily those of my employer.