| I would start by following EK's recommendation of a QT tank. Depending on the size of your blue morpho, a 10 Gal might not be big enough to house all your fish.
Normally, scratching would suggest that your fish have come down with ich, in which case I'd recommend a good copper based treatment.
However, you mention red streaks in thier fins also, which could be a few different things. It's possibly caused by the scraping your fish have been doing, injuring themselves while trying to remove the parasites. It's also possible that it is a bacterial infection. Infections of this manner are treated with Erythromyacin with fairly good success by me. Even if it IS bacterial related, I still believe that you are seeing a mild outbreak of ich as well, since the fish are constantly scraping.
Be aware that copper added to a tank can be very difficult to remove since it binds to all the surfaces. It can also wipe out delicate inverts like snails, stars, shrimp, and crabs, not to mention anemones and corals.
Also know that Erythromyacin (or any other anti-bacterial medication) is going to do just as it's name implies.....Kill bacteria. This means both Good AND Bad bacterias, resulting in higher ammonia and nitrites while under use.
Best of luck in treating your fish,
Cos |