PetsMart sells or can be bought on line, water testing kits. One I like, has
5 small pads on it, (Quick Dip 5-N-1 Test Strips) Made by Jungle, testing 5
different conditions, including Nitrites. You don't have to be rocket
scientist, just match the colors. Cost about $12, mine lasted all most 2
years, depends how frequently do the test.

Julius

"Fuzzy Orange" wrote in message
...
Szaki wrote:
Have you checked the water quality?
Guppies are very sensitive, for example. Once I had very high nitrite in
my
tank, also had some ammonia. Bought a few guppies, by the next morning
they
were dead. Than, I begin investigating what happened by testing the
water.
Ammonia can rise very fast, mostly in new tanks. 3 weeks is a long time
and
if the fish is all ready sick, you have to treat them with medication.
You have to keep your Nitrite under 40pm and try to keep it around 20
ppm.
Ammonia should be 0 ppm.
In 3 weeks, if you over feed the fish, can go to 100 ppm, means have to
change all the water out.

Julius




Thanks I will do a FULL water change tonight and get a testing kit
tomorrow to check the new water is ok

- Phil