|
19-12-2008, 12:31 PM | #41 |
Guest
Posts: n/a
|
|
19-12-2008, 01:03 PM | #42 |
Dragon
Join Date: Jan 2006
Posts: 692
|
Actually the whole purpose of this thread is to get ray keepers to start monitoring orp level as its a better and more comprehensive measure of water quality.
If your existing bio-system can maintain readings of 250 to 400 mV, then there is no need to add chemicals or ozone. When orp readings threat downwards below 250, then it just tells us that we may need to change water...plunge below 200, wash filter media. Of course if orp is contantly below 250, its just means that our bio-load too high and / or our filtering capacity is not sufficient. Kekeke either sell some rays or add filter capacity. I only use chemical and ozone when my rays encounter problems and i need a ORP of >350. My contant reading is about 310-335. Hope that clarifies, i personally do not like to add chemicals or ozone if nothing is wrong. Last edited by ray2828; 19-12-2008 at 01:11 PM. |
19-12-2008, 01:08 PM | #43 | |
Dragon
Join Date: Oct 2002
Posts: 2,217
|
Quote:
Maybe i shd do up something like this over at my parent's house in Cambodia. Got lots of space, but NO rays. |
|
19-12-2008, 04:05 PM | #44 |
Dragon
Join Date: Jul 2006
Posts: 835
|
After trying many many funny things and wasting lots of $$$ to maintain gd water quality, I still must admit that bro Marshy is still right abt it, nothing beats frequent water change. Regretted nvr lsiten to him earlier. However, over doing is not gd as well. Monitor closely ur frequency and % of WC, find the optimum frequency and the % of WC and just repeat every week and u will be just fine. (On the assumption tat the filteration is also adeqate)
|
19-12-2008, 07:32 PM | #45 |
Dragon
Join Date: Apr 2006
Posts: 1,714
|
Really appreciate you for taking the time and effort to do the write up.
It totally brings my fish keeping knowledge to another level. Not just for rays, but for every other fish. And loads of thanks to Michael, for being so willing to share his secret. |
19-12-2008, 11:44 PM | #46 |
Guest
Posts: n/a
|
been to petmart and back. asked them for a better price if we mass order orp meters. his answer was:
usual price per pc: $205 promo price per pc now: $189 above 10 pcs : $170 above 20 pcs: $160 what do u guys/gals think? btw, i have no affliation with petmart. just one of my regular lfs |
19-12-2008, 11:52 PM | #47 | |
Endangered Dragon
Join Date: Jun 2004
Posts: 6,821
|
Quote:
i was thinking of getting either one of these: pH + ORP + temp (ORP probe need to get seperately): http://www.transinstruments.com/Products/Uni%20pH.htm ORP only: http://www.transinstruments.com/Products/Senz/redox.htm |
|
20-12-2008, 12:01 AM | #48 |
Guest
Posts: n/a
|
oops sorry missed the brand.
its pin point |
20-12-2008, 12:11 AM | #49 |
Dragon
Join Date: Apr 2006
Posts: 1,714
|
I found this on an online store.
http://www.reefdepot.com.sg/AddProduct.asp?ProdID=166 Normal already 189. No need promo price Shipping price above $300 got free speedpost delivery. DBS/POSB card holders can get 0% installments. U think can use tat to push the price lower? |
20-12-2008, 12:14 AM | #50 |
Endangered Dragon
Join Date: Jun 2004
Posts: 6,821
|
anyone using equipments by this American Marine? if reliable i may get it. if not i think i will stick to the pen by transinstruments.
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|