Ho-kay.
In one of my 10g tanks, I had a small school [5] Neon Tetra, and two dwarf Flame gourami and one Male betta [very placid boy with other fish].
Over the past week since introduceing the Neons and Dwarfs [before hand teh tank homed two male bettas, divided, a CAE and a gold gourami for some time while fixing her old tank] have been slowly dieing off.
I've checked my water everyday since the first death [my favorite Betta and one of the dwarf gourami] and my water is near perfect.
My fish were happily swimming around, we left and did some shopping, came back and one of the gourami and my Betta, Leviathan, were dead, sucked lightly against the filter.
I doubt the filter the culprit, as it's low suction and even right now my two surviving Neons are just chilling next to it without much effort to stay in place.
Though I think it may have killed levi, as he was as fit as a betta could be, and was wrapped full length around the filter, but he often wrapped himself around the upper part, so I'm thinking he have wrapped himself around it too low and got stuck..
Anyway, The gourami that died had been hideing a lot in comparison to the other dwarf flame who was bussily investigateing the tank and swimming about. So At first I thought it was just somthing wrong with him.
Then the next day I wake up to a neon floating about. Dead.
Sad, My boyfriend scoops him out when I test the water, Again.
Water is fine.
Next day I'm sitting at my computer, and notice one of my neons that had been hideing out alone, having trouble swimming.
Then he was just floating, belly up, occasional flick of life, then eventualy, Death.
None of the fish that died exhibited any signs of illness before their death, only that they would hide in one of the fake decor or plants, and then within 10-20 hours, they'd be dead..
I just pulled another dead out one today.
My water is as follows:
Nitrates: around 30ppm [I'm comeing up on the weekly WC]
Nirtries: 0
Hardness is around 75
Alkalinitiy: around 100ppm
total pH: 6.8
Other then the random deaths my fish have been fine, Active, their color is well, eating well. I use the same food I feed the rest of my fish [Gourami tank, and two seperate bettas] and they're all fine [other then one of my bettas decideing he's got some tasty fins and loves himself oh so much. Naughty betta. He's doing well and regrowing, though
].
I can't wrap my brain around what could be killing off my fish, but my poor neons are going to become so stressed with only two of them, and I don't really have the money to go buy more because SE [ a gameing company] screwed up the billing for my boyfriend and my FFXI accounts [It's an MMO] ;;
Curses..
I'll have to go see if one of the LFSs is still selling neons for 99c each, though usually they're always out of them ..
Anyway, anyone have any ideas why they'd be randomly dieing when seeming healthy and the water is fine? :/ Guh.