Originally Posted by callistra
the blue is from the methylene blue.
I don't know about leaving malachite green in a tank for a prolonged period without a carbon filter.. it's toxic.. I don't use the stuff but I understand that you need to remove it completely (or the fish from treatment container when treatment is over..
What heater did you buy? I hope you bought one that shuts off automatically.. Putting a heater in a tank that has to be manually regulated is really not ideal unless you plan on never leaving the tank's side.. especially in such a small container.
So is your answer that I should, in fact, remove the water completely? I am getting one answer from Oldfishlady that says not to do a 100% change at the moment.
No, I did not buy a heater that shuts off automatically. I bought the least expensive one to see if this fish survives. I work from home, so checking periodically on it is not a problem right now. My husband just came home and I told him all about the things I've discovered today and our plan is to get a 5 gallon tank. We just can't afford it right now, today, right this second. That goes for the heater as well. When I bought this fish, I did so because I was told it was inexpensive, easy to care for, and would be a good pet for my 3 year old, so you must forgive me that I didn't go and buy a heater, much less an expensive one that shuts off on it's own.
My plan is to do everything I can to make sure this fish survives and if that means staying by the tanks side for the time being, that's ok. I'll do that.