Join Date: Aug 2003
Location: Lawerenceville, Ga In a Van down by the river.
If it says zero, I would really check my test kit.
First (and forgive me if I didn't read close enough), how are your fish doing. IF they look really stressed and you have some dying, then your nitrates are probably that high. (I myself have nver hit over 100 ppm unless cycling a tank). I think Ammo Lock will also lessen the effect of nitrates and ammonia on fish, however your test kit readings won't show it.
Second, Look for debris, and/or a dead snail or fish or shrimp, etc. That is usually a dead giveaway (pardon the pun) for your nitrates rising up that high. Try vaccuuming your substrate during your water changes to see if trapped food or trapped critter bodies are what is the problem.
Third, check your test kit. sometimes out of date chemicals or contaimanted kits will give really weird readings. boy I have had a Red Sea Nitrate kit spin me for loops one time becasue of expired reagents.
Bunches of tanks.
Reef, Planted, vivarium, terriarium, salt.
I worked my self up from nothing to a state of extreme poverity