albirdy;1949715; said:
Dmed, or any other potential fish gurus ;P
so... I am worried about the ammonia levels in my tank. today i did the changes like you were saying. but my ammonia read that it was .5, and i noticed the color in my rummy-nose beginning to fade a bit, they also looked a bit stressed. I DID change the mechanical filter for my aquaclear 50. should i put the old mech.filter back in? Or just wait. this is NOT due to the water changes though, correct?
thanks for the clarity!
NO, it is not from the water changes, and it is not from the salt. These are the possibilities:
1. Biofilter suffering because of changing mechanical filter. As long as you are also using bioballs/ceramic rings or equivalent, the bacteria can double numbers in 24 hours so this should not be a persistent problem. Without a source of ammonia (fish), the bacteria in the old mechanical filter will be dead anyway, so there is no benefit in putting it back in.
2. Medication or other toxin was added to the tank which killed the biofilter. Hopefully this is not the case.
3. High temperature is affecting biofilter. What is the temp. in your tank and how reliable to you believe that your thermometer is?
4. There is a dead fish or a large amount of decaying food in the tank.
5. Your tap water contains chloramine and you are using an ammonia test that can not differentiate free ammonia and ionized ammonia. If your water contains chloramine, you must use a conditioner that detoxifies chloramine. Please tell us what water conditioner you use. Do you know if your tap water contains chloramine? If not, please tell us what city you live in and I will try to find out for you. Also, what test kit are you using?
Regardless of what the people at Petco might tell you, water changes do not cause high ammonia levels.
It's important to rectify this situation fast, because the increased temp in the tank makes the ammonia more toxic. Also, is it possible that the ammonia was elevated for a while? That could be what precipitated the ich outbreak. Luckily, you are already treating with SALT which will decrease nitrite toxicity as the ammonia is nitrified. What is the pH in your tank???
dmed