Quote:
Originally posted by Samala
Who's to say GBD incidence rates do not increase or decrease in response to seasonal patterns? Perhaps high temperature variations in tanks causes stress that leads to disease.. it is summertime.
Or.. perhaps tanks go longer between cleanings and this effects GBD rates.
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Thats the whole point Me an Fishgrl have been trying to make. Even if this shows that there is a higher rate in tanks with (or without) skimmers, you still can't say its skimmers doing it. It may be something that people who own skimmers do (or dont do). It could be that people with skimmers do less water changes, or keep higher stocking levels, or....
We need huge amounts more data before ANY conclusions can be made.