Bad luck or tank problems?

Zastrus,
when it comes to neon tetras and oto's it's a crap shoot/gamble. the stock they get in at the fish stores, may not be all that healthy..neons are notorius for suffering from ailments(neon tetra disease being a bad one) and oto's it can be even worse..they seem to be sensitive for some reason..you can keep them for months then all of a sudden they roll over and die. a lot of this is blamed on quetionable cature methods some suppliers use on wild otocunclus..they are great fish if you can get healthy ones. the same is true with neons. I had a run of bad fish 4-5 out of 6 would dies for no reason.water parameters are very good 0,0,10 (ammonia, nitrite,nitrate) water in the tank is changed out 2-3 Xweek
but some neons would die. the a batch comes in and no losses.

Marinemom,

in my area..it's the govt that determines what is added to the water..up until 2 years ago they added only a little chlorine(very little)..now it's changed health dept determined they needed to add other chemicals..atleast they sent out letters before the change.
 
It doesn't really matter who decides what or what is added to the water. The point is that these chemicals are added to the water supply and they (the gov't or the health dept. or whomever else they decide has this authority)know this is not in the best interest of the people that consume this water. So that is why so many of us feel compelled to have an alternative water service such as RO/DI system in our homes.

Marinemom
 
aluminum oxide is what the city added at a 2% solution and it was enough to kill my fish even after filtering with r/o
 
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