I have a 29 galon tank, ammonia and all levels were fine for 4 month. Then it is spiking, [II have done 1/4 water changes every 2 days and it isn't high as soon as I do the change. What can be wrong? I HABE 3 1/2 INCH GLOW FISH, TWO MARBLE MOLLIES,TWO GUPPIES,TWO SMALL ANGELS, AND TWO 1 INCH CATS AND A GUARAMI.I]

Hey hon.

Fill this out for me so I can help you better :)

-How long has the pond/tank been set up?

-Water test readings:
--Ammonia:
--Nitrite:
--Nitrate:
--pH:
--KH (=Alkalinity):
--GH:
--02:
--Salt:

-Water Temperature:

-If it's a Concrete, Liner, does it have a Rock Bottom?:

-What kind of filtration:

-Water conditioner/dechlor used(brand):

-Routine Pond maintenance:

-Source (Tap or Well):

-Water softening unit?

-What, how much and how often do you feed your fish?

-Size of Pond? (gallons or LxWxD):

-Pond inhabitants;How many total, type and Size:

-New fish or plants added to the Pond?
A: What type and when?
B: Were they quarantined:

-Medications used: