well, i dont know the aquamarine, but it seems to be a bigger system and in marine fishkeeping (and indeed all fishkeeping) its always better to have more water in the tank for stability.

the magnet on the koralia nano is quite formidable so a little curve shouldnt be too hard for it to cope with. but if we're talking biorb with little air surface area, i would think the tank would be healthier with the circulator pointing up to assist in gas exchange. It will also help problems with low pH because of dissolved CO2

no ideas on the skimmer, but as far as the weir goes, i suggest a Durso Standpipe... http://www.dursostandpipes.com/ they effectively reduce the drop length of the weir making them loads quieter without making them any less effective.

i've just installed my WG-308 in my orca 450. I had to put it in chamber 4 because the water levels in 2 and 3 were too high... anyway, how long did you guys generally find it took for the skimmer to bed in?

I got some yellowish water last night and today after work which tells me it was too low, now i've got it moved up but i'm not seeing any significant buildup going up the tube, its still very watery.

I'm hoping that this thing will get to work soon, i'm sure my tank which is now well over a year old and never had a skimmer is feeling the need :)

my RO unit just has a tap under the sink for me to turn it on and off when needed. when its not in use, it stays full of water but nothing coming in means nothing coming out

if its circulation you're looking for in your tank, i'd suggest going with a circulator like a hydor koralia. the way the orca tanks are designed, you're not going to get a large amount of flow or circulation out of them no matter what pump you place in the chambers.

A nice circulator will help push the water where it needs to be moving much more than a pump upgrade in my opinion.

i usually see a raw shrimp or prawn suggested for crab catching

that was the trap i was looking at, one way door which is probably best. i know the inverted soda bottle is great, but this guy looks pretty huge from what i've seen and fear he may be too wide for that opening.

i went to manchester for 5 nights. i have alot of friends up that way and i did alot of partying and got very drunk, it was fun, i miss it already :)

sorry, i was away on hols. its a rather big one and it NEVER leaves the safety of its cave it dug under my live rock. i've seem some pest traps from....hmm... cant recall the company off hand, but they look alright albeit pricey, the thing is, i've not seen it truly in its full form as its never more than just a cm or 2 out of its cave at the most. but i'm reasonably sure its why i dont have nassarius snails anymore

thats what i'm hoping. i really want it to be something special so i'm hoping to have it full of unusual things