Help with fairly new set up. My aquarium was doing so good until last week this is what happened now I'm not sure if I need to do something or if I did something wrong and what I need to do ? These are the fish that I had at first 3 tigger barbs, 2 amazon leaf and 2 honey gold gouramis.
First Last Thursday 5 days ago I did a gravel clean with the siphoning unit, (it was alot harder than I thought) anyway so after that I of course had to add 25% of the water back , I used well water with a water conditioner Tetra Aqua Safe (according to directions read three times) everything seemed to be going good. Then Friday the next day went to the pet shop and picked up 2 more Tiggers, 2 Pictus Catfish, 2 Bala Sharks and 2 commom plecostomus, on the day they were added slowing as directed on bag, one of the tigger fish wouldnt hang out with the others, the new ones were a bit smaller then the original 3, but they all seemed happy, this one tigger hung out by himself and barely moved, then Sunday he died. I of course freaked out what happened to him was he sick when I got him or is something in my tank off. I did a water test everything is good except my
pH it is 8.1-8.2,
I have literally been on line looking at everything I can find about all fish and all chemicals for many hours.
I do not know what to do, the pet store told me to add some PH down to the water, to take the filters out before I do this, but then again she told me that tigger fish were OK only being two to a tank (everything else says 5 or more) so I don't want to add any PH down chemicals unless this is going to help and not hurt my fish. Also it appears that one of the tigger fish is swimming up and down the side of the glass, is it getting sick?
She also suggested I get some Pimafix (antifungal remedy) although I see no fungal on my fish but the tigger does look a bit red, but then some do don't they? I have a video of the tigger swimming up and down the wall but dont know how to add to this message. I will look that up as well and maybe add it next.
Please advise as to anything I should do or shouldn't do? I hate not doing things righ the first time and am wondering if I didn't make a huge mistake by taking these fish lives in my care. I know there is a load of stuff on this website to help me and I have read for hours and have notes written down but still need to know what exactly is my next step. Thanks so very much for your knowledge.