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I recently started up a 20H SW tank, which I'm planning on building into a "seagrass" biotope, composed of some LR, macroalgae (species that spread over sand rather than rock), and plastic Vallisneria to stand in for seagrass. Currently I've got 2" sand and ~15lb Florida LR I got from a friend...

I have some Mickey Mouse platys that I'm moving to their own tank. And I have some white play sand that bubbled when I did the vinegar test, so it's limestone/coral/whatever, and I haven't used it for any of my FW tanks so far. Now, I've read that platies prefer alkaline, hard water, so...

I'm setting up a simple 20g reef tank - for right now it's just going to focus on what grows on my LR, some clean-up crew, macro-algae, and maybe a couple peppermint shrimp. No skimmer, but lots of powerhead flow. I'll probably want to try some easy corals down the line, probably Discosoma or...

I'm planning a 20g invert sand-zone set-up - just 10 lbs LR (from LR.com), 2" LS, some hermit crabs and snails, macroalgae, no filter, no skimmer. Probably just NO lighting for now. First, I'm just going to enjoy seeing what develops on my rock for a while. If all goes well with water...

I've read a little about pros/cons of using seawater, and I'm still unclear. I'm not looking for the cookie-cutter response of "use RO/DI water with salt mix - it's a known factor." Anyone out there with some experience using seawater? Apart from the obvious "don't use polluted water", what...

A newb question here: Whenever anyone refers to doing a fishless cycle for SW, they seem to be referring to the dead shrimp method. However, as I'm learing about SW filter methods, it seems to me using uncured LR in your initial setup will provide enough die-off to get the bacteria going...

Does anyone have a reef or FO tank that they grow lots of macroalgae in, in the main tank? I've been researching doing a reef tank (I've only recently got into the hobby, starting with FW), and I was first really interested in turtle grass, but from a couple sites that I saw referring to it in...

I asked these questions on another forum site (I was tempted by the dark side), but didn't get any feedback (maybe it's too many questions to try to tackle), so I thought I'd ask here. I've read a lot of information about using live rock that seems contradictory and hoped someone could explain...

I've been running DIY CO2 on my 75gal and not seeing any effect on ppm. I've got 4x2L bottles, hooked up with individual inverted IV tubes to count bubbles, so I know they're bubbling at good rates. I originally had it connected to an airline going into the base of my wet/dry filter, but I...

Hi all, I've just planted my first tank and I had a question about setting up a DIY CO2 system. Pertinent info: The tank is a 75 gal SeaClear System II (I got a good deal on a used one), so it's got the filter stuff sectioned off in the back (essentially overflow goes through a prefilter...