Originally Posted by Sniperhank
I'd look into what 'the problem since day one' that you pointed out. Algae means nutrients, mostly nitrates. You'll not see it since the algae is consuming it all, giving a false 0. As those numbers rise they become stressful to fish, cutting life spans.
Sent from my iPhone using Aquarium Advice
I still can't understand how you think this is accurate.
If it was as you suggest, then why bother with refugiums and ATS set-ups, bio-pellets, etc. because it is pointless because the nitrate is still there, you just can't measure it.???????
Isn't the point to get things low enough that they can't be detected?
Ammonia & nitrite are also present all the time, just at levels that remain undetectable due to the action of the filters.
nor is there any firm proof that nitrate is detrimental to fish to the degree often claimed.
I was actually shocked when researching octopi when I read about one being kept successfully in a system with nitrate well over 100ppm with no adverse effects, and octopi are one of the most sensitive critters we can keep.
What needs to be done is to view the nitrate as an indicator of how much nutrients are being put into the system because it is the best indicator.
How many folks cause more harm by chasing down numbers, especially for something as relatively benign as nitrate?
I doubt that nitrate has anything to do with the fish deaths other than being an indicator of nutrient issues.
being a fish only tank, you can easily manage algae by managing the light cycle and type of lighting.
Have you tested your source water for any type of metals or other contaminates?
Have you checked for stray voltage in the water?