Yeah, I went to one up in Seattle in the mid 70's. Don't remember much of the concert, got a little tooooo wasted. But that was kind of what it was all about back then, wasn't it?
Hey CCR, it's always nice to see another old metalhead. Nothing better than an old Black sabbath album...errrr...I mean disc. Don't forget to put on some Led Zep once in a while.
No, I do not top off with kalkwasser. I'm just happy to not be bothered with always manually topping off my sump. Such a simple, cheap little device, worth every penny I paid.
I'm using a 300 gph powerhead. I have a length of hose slipped over the nozzle of the powerhead and the powerhead sits in the bottom of my top off bucket.
My total system volume is almost 200 gallons, and like I said I've never had a problem.
I use one of those cheap little extention cords with a float tied into it, type of ATO's with a powerhead hooked to it. They cost about $15.00 or so on e-bay, never had a problem with it. Yet.
You might try some of that spun plastic fiber padding that is used for filtering, cut to desired width and length and zip tie or rubber band to your homemade prefilter assembly. I think it would work better at filtering the loose sand than window screening would.IMO
I'm currently running an Aqua-C EV-200 externally, with a mag 12 pump. The skimmer pulls some nasty gunk and it's fairly quiet. The install is easy, just place a 1.5" bulkhead in the side of your sump and plumb the skimmer return line. Drop your pump in the sump and crank it up.
I had a mantis shrimp in my 'fuge for about five or six months. It was a very interesting pet, he would come up to the front of the tank and greet me every night when I came home from work.
He ate a few snails and hermit crabs. But all in all he wasn't as bad as everyone said.
I agree with flyguy, crushed coral isn't the way to go. But in this hobby what works for one reef keeper doesn't always work for another.
I personally like the look of a shallow sand bed.
My rock is covered in coraline algae, but only where the light hits the rock.
Since it is a type of algae it needs light to grow, I don't see how it could totally seal the rock . That's just my opinion.