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I have an RO unit, 4 stage with a separate DI teed in to allow for non-DI drinking water. I am running a 150 gpd 98% renection membrane. It works very well (750+ tds in, ~20 tds out after RO, zero after DI). The problem is it won't shut off. The ASOV (auto shut-off valve) just pulses, never actually cuts off the brine water flow. I checked and rechecked the installation, using Melevsreef.com's troubleshooting guide. I replaced the ASOV, no help. However it did change. The original did nothing ...

I know, the title sounds odd. My wife and I have our second son due soon. I am trying to think of a name to reflect my passion for the ocean, reefkeeping, corals etc. that doesn't sound like I names him at Woodstock. I would like a name derived from or meaning something from this realm. The only name I have found I like is Kai, Hawaiian for 'of the sea', however my last name is VERY French (D'Aunoy). Not sure how the two would flow. For the record my wife is Irish/Scandanavian and I am a predominately ...

So I am getting a 60G tank ready for top-down view, and want to trim out the opening larger. It currently has about a 2-2.5" lip around the top, and I want to cut it back to 1". The tank is built of 1/2" acrylic. I have at my disposal a router, a jigsaw and a circular saw. My plan is to rough cut the opening oversized a bit with the jigsaw, the using a template made from MDF, route out the hole to the finished size, then follow with a 45 degree knock-down bit to finish it off. ...

So I got a hold of a bucket of the highly anticipated Salinity, the first of three buckets currently available on the Central Coast! Here's what Seachem says about it:
"salinity™ is a blend of salts specifically formulated for the reef aquarium that contains all essential major, minor, and trace components found in natural reef waters, but contains no toxic or non-essential components. Additionally, ...