High Nitrates - When Is The Best Time For Water Change?

[-Jo-]

I am on day 35 of my fishless cycle. Day 33 was when i noticed that my ammonia and Nitrite readings were 0ppm for both after 24 hours. I am conitinuing to test at 24 hour periods. Nitrates are gradually becoming off the scale daily - is it best to do a mass water change when the ammonia and nitrites are shoing 0ppm after 12 hours? or should a water change be done now as nitrates are high?

 

[BETTY BOO]

I am on day 35 of my fishless cycle. Day 33 was when i noticed that my ammonia and Nitrite readings were 0ppm for both after 24 hours. I am conitinuing to test at 24 hour periods. Nitrates are gradually becoming off the scale daily - is it best to do a mass water change when the ammonia and nitrites are shoing 0ppm after 12 hours? or should a water change be done now as nitrates are high?

no dont do a water chanage now.you dont need too as the nitrate will be high.i added my fish once the ammonia and nitrite were at 0 in under 24hrs,and my tanks been running for 6 months.ive had no spikes and all been good.so test for 2 more days and if they are showing 0 then do a 90%/80% water change then get your fish the same day.looks like you are there whoo