keepsmiling - thanks again. Several more questions:
The symptoms the gourami is experiencing now:
bloated looking abdomen. Normal looking stool. Drifting and occ curving of body. Often staying low in the tank, but sometimes mid-tank. Faster respirations than the other fish in the tank. Not hiding nearly as much. Seems to have difficulty with swimming to the top of the tank....seems like it takes alot of effort, but he gets there. Eating with enthusiasm, but not able to compete with faster eaters, so I try to feed directly over him (food is still flake or frozen at this time. I will look into pellets). Overall better, but previously he was always mid tank, swimming confidently and readily able to compete even with the tetras. In fact, he bullied the tetras for about a week back in Feb or March. Totally diff behavior now.
The other fish in the tank all seem pretty much normal now.
Not sure I undestand this:
If in a week's time your tank reaches 20PPm in nitrates, do a 50% water change each week. And go from there..if it takes two weeks or whatever. When cleaning substrate do a portion at a time.
Are you saying to just do a 50% water change whenever the nitrates hit 20ppm? Also are you saying to typically only vacuum a portion of the gravel each water change?
I can't find it now oddly, but I thought you posted about rinsing the BioWheel monthly (I have 2 Biowheels in this filter) and only replacing carbons pads when they look crummy. Is that right? The carbon pad gets gunky sometimes between changes. Should I just rinse it with tank water and put it back until the pads start fraying/falling apart?
Now that I'm done treating with Quick Cure (did 5/9-13), shouldn't I do a water change now? Or wait til nitrates come up? I was prepped to do water changes today.
Is this the filter you mean:
for a 55 gallon tank?
Would I change the filter now? Or how do I determine the best time to make that change? Its pricey and I just spent $100 setting up the hospital tank. May have to wait a bit on an $80 filter.....
My new 5 gallon hospital tank has only been set up for 3 days. I cycled it quickly using some materials from the 55 gallon tank. I've only tested with the API kit once for this tank
The levels this morning read: Ammonia 0.25. Nitrites 0.25. Nitrates 5.
Is the hospital tank ready to receive the gourami? Do you still think I need to isolate the gourami and treat?
A related question regarding a separate tank:
Ok so I have a 5 gallon fish tank that was fish-less cycled over a 2 month period. I acquired 2 glo fish danios after the cycle was complete + a piece of spider wood. Both fish got along well and seemed to be eating well. Plastic plants and gravel in the tank, plus some floating plants (duck weed and frog bit). After about 7 days of apparently healthy behavior, one of the danios sudeenly died. The other remained active.
Levels in tank all 0 (told this was good), so went ahead and added a guppy mating pair 2 weeks later, plus live plants for hiding (esp if fry ever come along). Was told at the LFS that they should all be good tank mates. After about 1-2 days, the danio started aggressively bullying the male guppy. I made the mistake of assuming the guppy would hide more til things settled down. Well after a few days, the male guppy started looking stressed and frayed. I assumed he had the same condition as in my 55 gallon tank as I also acquired the (euthanized) gourami from the 55 gallon tank the same day/from the same store.
I started Quick Cure in the 5 gallon. Despite, after a couple of days, the male guppy was dead. I dont know if the danio killed him (is this possible?) or if he died of some illness. Now the danio has turned his attentions to the female guppy and picks on her during meal times. Not as aggressively as the male guppy, tho.
Levels in the 5 gallon were all 0 when tested after the first danio's death and this morning.
If you don't think I need to isolate the gourami based on new info (and treat the gourami with Erythromycin I have ready to use), I would move the danio over to that QT tank. I don't really know what to do with the danio. He is QUITE aggressive. I have zebra danios in the 55 gallon and they are very peaceful and hardy. I was told at the LFS to expect the same from the glo fish danio.