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Wait, are you saying our Board members aren't omnipresent and omnipotent? :o I need to retract my votes! :p :grin:

I would definitely buy a new sediment filter and carbon blocks (and DI). I'm not directly familiar with this unit, but if it doesn't have TDS capability, I'd pick up a TDS tester and use it to check the membrane. Most good membranes for 75 gpd have a rejection rate of about 98 percent...

Here are the "cobwebs" from a vermetid snail taken from THIS article.

Do you see small little tubes....about 1/16 inch diatmeter? If so, these are vermetid snails....that can't move like a conventional snail. They put out sweeper tenticles that look web-like. Do a search on vermetid snails and look at the images. That's my guess.

I own five Vortechs, and I'm afraid if I vote against them, one of the dry sides might just have it's bearings start to sing. It's already happened once, and I don't want it to happen again. :grin:

Using my fingers and toes and then some, I'm only counting 48 LEDs. Assuming they are the common three watt variety, and that's a six foot tank, that's still not enough light (for sps anyway). Are you supplementing with some other light source?

Yeah, I noticed that too Ed.....doesn't have a night mode like Vortech!!!! :p

Paul, this doesn't sound very good for you. If you've lost your hair, have a propensity for supermodels, are experiencing hip pain, and are now seeing blotches, this will quickly be followed by rapid onset dementia! :o :grin:

You can't get much simplier than the canopy I built.....made with inexpensive fir strips and 1/4 inch plywood. Here it is opened up so you could see the two LED's and full access. Information on the build is in my Tale, and starts HERE. It starts on post 171 and includes posts 176...