nonstophoops;4990693; said:Setup sounds like a good one. Your oxygen levels aren't the problem.
The water quality isn't that simple under compared to air because of the bacteria that inhabits the water. You are removing too much of this beneficial bacteria at once and continually(every week), so your system never has fully stabilized. Also, your water quality is not spoiling that quickly and it is a slow slow gas leak. Why call in the fire department in big suits to tear apart your house to fix a gas leak that isn't an emergency and not leaking enough gas to even harm you.(that is my awful play on your story, but I think it might be effective.) It is possible to do too much of a good thing and actually make it detrimental.
Good forward, start with a 15-20% water change once a week. Keep a log of your test results and see if those water changes are adequate. If not, which I doubt, you can up it a bit and see what happens.
Deep Blue Sea;4991299; said:whats your salinity at?
FLESHY;4992278; said:The amount of beneficial bacteria that are actually suspended in the water is minimal.
I am of the opinion that 90% of the time there is no such thing as too big of an h2o change, as long as it is done in the right way.
When things are bad, I do big water changes. You might shock your corals, but is it better to do one shock, and fix your problems, or is it better to leave them to fester over a longer period of time in whatever is wrong with your tank?
If you are shocking your corals, you would have seen it before this.
Since that hasnt been going on, it is hard for me to believe that the difference in h2o quality was enough to harm fish, but not really the corals.
I think something strange is up. The only thing that was weird is that there was nothing strange h2o quality wise.
Im thinking something must have been introduced to the tank. We still will see what happens, oftentimes corals show symptoms later than other animals in a tnak when things go bad.
Addikted2Cichlids;4992644; said:The only thing I can think of is maybe something got introduce to the tank. If that was the case wouldn't the little snails die, or my shrimp and the other crabs. Even all the little feather dusters in my sand are still poking out. That's the only thing that is throwing me off. I was thinking that maybe something got in the tank but would it kill all the small stuff first and if not wouldn't both fish have died or at least show signs of sickness? I just hope nothing else dies, and everything will eventually right itself. This is my first SW tank and I have never payed more attention to a tank in my life and for some reason this is the tank that I have had the most problems with as well. I guess I will try to change my maintenance routine and see if that helps. What do you guys use to feed your corals and filter feeders? I use phytoplankton and I'm not exactly sure what the name is of the other stuff because it's in Italian. If you know of some good products that I can start using instead, I will place an order on Dr. fosters, Thanks for all the help you guys have been giving me.