i was not sure were to post this but thought more people would see it here.
i have a 15 gallon, 2 filters wisper 30 and ac 50 on the back. tank i set up about 4-5 weeks ago and have had 3 black tetras in it to cycle it. they tend to hide a lot and i have a few decorations and live plants so i dont see them in the open much. i got some guppies from a guy little over a week ago they all looked fine. so i added them to the tank. the ammonia spiked a little to .25 and same with the nitrites. it went back down yesterday so i bought 2 kribs for breeding. i started to slow add water to them when i noticed the one tetra in the back had a back dot on him then i saw the other fish. his hole belly is black and looks like rot "i think".
i moved all 3 to another hospital tank. i took the guppys out 3 days before and put them in my main tank
i added some salt to the tank and the temp is at 80
i am just worried about adding my new fish ? i dont have any were else to put them. any thing i can do to make sure the tank is ok? and or safe to add the fish?
could cycling have hurt my tetras? should i add the kribs and then just buy meds for the tanks just to be safe?
i stopped adding water to there bag but right now there just floating in the tank.



i have a 15 gallon, 2 filters wisper 30 and ac 50 on the back. tank i set up about 4-5 weeks ago and have had 3 black tetras in it to cycle it. they tend to hide a lot and i have a few decorations and live plants so i dont see them in the open much. i got some guppies from a guy little over a week ago they all looked fine. so i added them to the tank. the ammonia spiked a little to .25 and same with the nitrites. it went back down yesterday so i bought 2 kribs for breeding. i started to slow add water to them when i noticed the one tetra in the back had a back dot on him then i saw the other fish. his hole belly is black and looks like rot "i think".
i moved all 3 to another hospital tank. i took the guppys out 3 days before and put them in my main tank
i added some salt to the tank and the temp is at 80
i am just worried about adding my new fish ? i dont have any were else to put them. any thing i can do to make sure the tank is ok? and or safe to add the fish?
could cycling have hurt my tetras? should i add the kribs and then just buy meds for the tanks just to be safe?
i stopped adding water to there bag but right now there just floating in the tank.


