I killed my brown powder tang

Did he choke on the Nori???

 

Putting a glass top on the tank will help to slow evaporation, and since you have a FOWLER, light penetration isn't an issue

 

No but oxygen exchange is and if you're going to keep tangs, you don't want to interfere with that process

 

+1 to this one, that what i think

 

Here's a key question that has not been asked yet...

What else was in the tank with your fish? ANy other fish/inverts?

Also...

Did your tang show any signs of ich? It's something most newcomers to the hobby don't pick up on until the fish is dead.

 

Sorry about your loss. Luna

 

Sorry for your loss....

+1 on Geekdafied's answer, when I have my fish only my salinity was at a constant 1.018 and I never had a problem. It wasn't until I got into the reef end of this hobby did I hear 1.25 or 1.26 and until I read a little about it I thought you people were out of your freaking minds.

And I really don't thank that a salinity swing would have killed the fish. I always hear every one giving all kinds of reasons and it makes me think..... since nothing else in the tank is having a problem, I just have to ask......What if it was just that fishes time to go?

 

Leopard Wrasse
Tomato clown
Chromis
Scooter blenny
a few hermit crabs
a few turbo snails
2 fether dusters
They all look good, eating well, one of the Chromis lookes a little beat up, but i think the clown is responsible for that.
i have been adding salt with some watter, little by little, i checked it today, and its now at 1.021.

Thanks to all for Karma, and advise, i knew i can count on 3reef for support.
i will not be adding any fish until i get my **** setup right, and learn more...

 

This has been said a few times, but since you're asking after those replies, I'll reiterate. If you put a gallon jug of salt water on the window ledge, and let two weeks go by, maybe half the water will evaporate. What's left in the jug is half a gallon of water. That resultant water is going to be twice as salty as the original volume. This is because only water will evaporate. Think of reducing a soup. The longer it sits on the stovetop and bubbles away, the more concentrated the flavors become. This is because only water will evaporate. Campbells knows this, and uses this principle to sell you 32 oz. of soup in a 16 oz. can.

To answer your question of "should I add some salt?" The answer is NO. When you topoff your tank, you are replacing the water that has evaporated. The salt doesn't go anywhere. Why? Because only water will evaporate.

Please don't take this as a wisecrack reply. It is not. I'm stressing a point that you didn't seem to get.

As for the glass tops, I don't think they are worth their downside. They prohibit gasseous exchange which is vital to a healthy tank. Evaporation isn't something we necessarily need to limit--we simply need to live with it and counter it swiftly. This way we avoid swings in salinity. Although geek makes a good point, and he's correct in stating there are salinity swings in the ocean; our glass boxes are dependant upon us controlling so many variables that aren't a factor in the sea. In my opinion, the variables we can control, like salinity, we should control. The way to control salinity spreads is to keep on top of evaporation by adding topoff water regularly.