my example isnt specific to rays, but i was having nitrate issues in my 400g. even after doing 80% water changes every week, my nitrates were still 80ppm+. i finally installed a 24/7 drip system and removed all the sand, and a week later nitrates are down to about 10-20ppm. the 3" sand bed was being a nitrate factory in my tank!!!!!!!
just something to consider
just something to consider
jcardona1;3858638; said:okay here's a nitrate update, a week after setting up the system!!! first off, here's something a little interesting. i used two different API test kits, and they both gave different results.
the kit on the left was purchased was purchased over 2 years ago. the one on the right, less than a year. i was under the impression these things had long shelf lives? either way, one is saying 20ppm, and the other is saying 10ppm, which is GREAT!!!!! and especially considering this is a 400g tank with a huge bio load; some monster pbass, big silver aro, large bichirs, etc.
so now the question is, which should i consider accurate
and here's the reults from last week, when i first set the system up. tap water on the left, and tank water on the right, well over 80ppm (right after doing a 75% water change
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