Ray Keepers--- DO YOU RUN A UV on your tank--and why?

  • We are currently upgrading MFK. thanks! -neo
I would also counter that the tank with uv will be far from sterile, it will just have lower level bacteria count etc than without.

Thank you for saying that... The immunity debate is unnecessary, this is about population control there will be no sterile environment. DavidW said it also - the purpose is to reduce pathogens in a closed environment. These small boxes we keep are not natural therefore the bacteria won't behave naturally. The opportunity for something to get out of hand is very high and to not recognize this is playing a game of chance with your rays.
 
I am setting up my 9x4x2 tank and have added 2 of the vecton v2 600 units. They state a max flow rate of 1900ltr per hour. The eheim pump i have spare is a 2200ltr per hour pump. Obviously this is too much for one unit but i am hoping that for pumping water through 2 units in a daisy chain effect plus around 2 feet of head that the flow rate will be ok. Anyone any thoughts on this please?
 
I am setting up my 9x4x2 tank and have added 2 of the vecton v2 600 units. They state a max flow rate of 1900ltr per hour. The eheim pump i have spare is a 2200ltr per hour pump. Obviously this is too much for one unit but i am hoping that for pumping water through 2 units in a daisy chain effect plus around 2 feet of head that the flow rate will be ok. Anyone any thoughts on this please?
Yes, that should be fine but I would personally t off before and slow the rate down, 50% would be better IMO and you get some extra water heating from the uv, you will already pay for that energy so may as well get the most out of it. Slower is better IMO. If you do not like a t then add some back pressure to slow the flow down, maybe a spray bar, lift some head or a tap the other end to add some pressure. I would loop the return back to the pump for some recirculating maybe?
 
Still no mention of ozone.....

I also would like to get more opinions on ozone as I have been told they're very effective and somewhat inexpensive. The local aquarium maintenance guy here swears by them and said their harmless for freshwater set ups. Just set them and forget them, no bulbs to change etc. However I don't know and have heard conflicting opinions.
 
Some people talking about Redox, this is the potential for a chemical to take on electrons, therefore when we talk about redox in a fish tank we normally read the orp (oxygen reduction potential) measured in millivolts. The higher the mv the more saturated in oxygen the water will be.

My orp probe has wandered a little and needs a recalibration but it hovers from 200-300 mv. My nitrate reactor (anaerobic and fed on vodka) used to get below 100mv when I was running it.


Not sure what any of this has to do with the uv unless we are referring to the redox of the fish immunity?...

I would also counter that the tank with uv will be far from sterile, it will just have lower level bacteria count etc than without.

I have looked at ozone and I am considering it for my swimming pool but the potential for an accident with ozone on my tank is too high for me to consider.

When calibrating a redox probe you need to leave it in the solution to stabilise for a few days then set the value

Even with ozone the safe level for FW is no higher than 340 mv above this is risky

With loads of air pumping into the tank sump and weirs my mv sits at around 220

I have herd people say good things about ozone so I gave it a go and to tell the truth I found it more hassle than its worth and with the risk of killing your whole tank if the levels run to high or the carbon you need to run it throw before it enters the sump or main tank I found a gamble I was not willing to take

I would recommend a UVS to anyone keeping rays as there is no point wish you had something when it's to late

We all know rays are not good with meds so if you have a option of cutting down the risk of needing meds or salt then surely you must be crazy not to use it

No point wishing you had car insurance after you crash or it gets stolen



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dagnabit but I agree with T1! ( that doesn't happen every day! LOL)
:)
if your UV craps out then it does nothing, if your ozone craps out it kills everything
 
The main problem with ozone is they run by a controller which adjusts the amount of ozone added

The probes on a ozone controller need a lot of care and if they are not calibrated correctly kiss good bye to your whole system

Like I said I played around with ozone for a few months then dumped it

People asked for input on ozone and I have given it

I can only give advice on things I have used and a UVS is worth the money ozone is to risky in my eyes


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