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Why is no lid an issue? I know you will say they jump. Question is why they need to jump? A settled fish will not jump unless bullied. So your suspicion is justified but you did not elaborate why, which I did for you @raccioppi83 . Good call in the end.
Now that I see his list of fish, the...
5 Barttlets and 5 Lyretails in a 40B sound a LOT. I hope your tank is bigger than that @DangerDave?
@jmags080307 you can add a trio of anthias if you want or a goby if you are into that. 40 Breeder is not something where you can keep a lot of stuff.
Time for upgrade? :D
Sunny
OK. I read the last 20 posts here. I see now what is going on. You are having SPS issues. Sorry man I have no SPS experience. I am sure @Philadelphia Aquatics have you covered.
I cannot say anything about #1 above.
#2 - How do you know that the coral was healthy before you put it in your system? Did you pick it up or was it shipped? How did you acclimate it? SPS or LPS. Did you test the water that it came in?
There are so many things that can be an issue than YOUR...
OMG. I have no clue what IPC test is but why do you need to rely on it? Can you not test your own parameters? I mean you have a 30 gallon system and you are spending $$ to test the parameters? I cannot believe how many rip off solutions are being added to this hobby each day.
Dude - Keep it...
Get some chemipure and throw it in your HOB fuge. You do not need a skimmer. I have been running my 75 gallon for 18 months now with 2 HOB Aquaclear 110 filters and chemipure. Everything is very happy in there.
With the 40G size skimmer is an overkill IMHO.