Lance's 225 gal tank

[GreenSpottedPuffer]

Originally Posted by marie

Where did you read about copper destroying a tangs gut fauna? I had to treat my achilles 3 yrs ago with cupramine (he had marine velvet)

My older brother is a marine biologist and has told me.

Here is Bob Fenner talking a bit about it:

<Surgeonfishes have a mix of microbes, bacteria, protozoans... more that like E. coli in our intestines, or better, similar organisms in termites allowing them to utilize cellulose... With loss of these obligate co-digesters, the animal hosts suffer from nutritional deficiencies... Where do the Surgeonfishes et al. pick up these helpers? From ingestion in the wild (sediment, detritus, fecal pellets... Perhaps having a not-too clean system, with other healthy Tangs would re-seed the impugned fishes guts. Bob Fenner>

<Likely a cumulative nutritional disorder... very common with this species (and other tangs)... due often to the "urban-myth" of feeding them terrestrial greens like the nutritionally zero lettuces... A related possibility is the loss of gut fauna from exposure to copper, other medications, that kill off the necessary microbes in their "stomachs"... Does any of this sound familiar? There are other less likely causes of mortality... internal parasites, genetic defects... Bob Fenner>

Do some searching on the web...there is plenty of info about tangs and meds.