As for not needing a UV I think that's rubbish
If you have a mixed comm tank other fish can get ick or other parasites even if rays can't as rays can't handle meds then its just safer to have the UV just like with a power backup there is no point getting one after you lose your whole tank
Also if you have breeding rays that bite a lot then a UV stops the bites getting infected
I have had a lot of rays with bad damage and never had the need to add salt
I keep my rays in a high temp and UV all the time and never needed to add salt
Look at this damage a male done I never done anything and it healed up find within a month no infection
Sent from my iPhone using MonsterAquariaNetwork app
If you have a mixed comm tank other fish can get ick or other parasites even if rays can't as rays can't handle meds then its just safer to have the UV just like with a power backup there is no point getting one after you lose your whole tank
Also if you have breeding rays that bite a lot then a UV stops the bites getting infected
I have had a lot of rays with bad damage and never had the need to add salt
I keep my rays in a high temp and UV all the time and never needed to add salt
Look at this damage a male done I never done anything and it healed up find within a month no infection
Sent from my iPhone using MonsterAquariaNetwork app