There are 2 ways of doing it. To get the cup off you have to unscrew it off where the light grey ring is. You can turn it off and unscrew the cup off or you can turn down the air intake until the water level is below the screw ring then unscrew the cup while it still working. HTH
hi, I've the same v2 400 and it is inside the sump. your is hang on which is fine. the air tube you've got inside the bubble trap box is correct and it is inside the water, so no problem there. Only want to say as the instruction in booklet does mention it is the air tube should only just enter the hole of the black sponge. Not all the way in to touch the white filter wool underneath it as it will block it and make the skimmer less efficient. So if it too big and goes all the way in to the bottom then cut a bit off so it only just enter inside the black sponge hole. And like Eagle c say it take a while for the skimmer to bed in especially if it new and worked better when you have stock in.HTH
Sorry to hear you lost your clown. They're happier in pair. Just get a smaller one to replace the male. My pair are doing well now they're 2 years old and in mate's 5ft tank. Good luck which ever tank you get.
Not really, mistake was the coral beauty was a baby and to timid to defend itself. Mate locally have bi and coral beauty but coral beauty was bought first fully grown and bi later and both get on well. I've got a flame angel with replacement coral beauty and both get on well. Just a case of working how to introduce them and size factor help.
There are pro and con in having mud, the same with deep sand bed all to help keeping nitrate down etc. I've none of these just some live rocks with chaeto with brittle starfishs and the sump light is on 24/7. Also bonus with main sump is I've put the bi colour angelfish there as it was a bully and killed off the beauty coral. HTH. Never had any problem with nitrate.
The water is only moving slightly until the last baffle which is normally lower than the rest for the return chamber. I put a koralia pump in the main sump so their is sufficient flow for any macro algae and inverts. I've a few brittle starfish. Only need a small pump and would'nt sirred the mud or sand.