Need Advice (Nano Reef)

Kashta

Always Niko's fault.....
Jun 24, 2008
4,676
0
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USA West Coast
Real Name
Susan
Let's see, I'll give a little background on the tank and it's condition and describe what I'm planning.. so far. Just checking with you guys, first, to make sure it's okay before I actually do anything.

I bought a 12 gal Aquapod reef setup off Craigslist. This so-called "established" tank was a mess inside and the move didn't go very smoothly. I did what I could to get everything put back together and have left it alone for about 12 days now.... figuring it would either survive or crash on me. (I truly expected a lot of die off. But so far, so good... everything's still alive and there's obvious signs of growth.)

Tank contents

Live sand and live rock with nice coralline growth, zillions of copepods and amphipods, brittle stars, bristleworms, spaghetti worms, more unidentified worms (one I'd guess is a foot long), many fan tube worms open and new ones appearing all the time. There was one tiny brown mushroom polyp and a smaller new one appeared next to him a few days later. Some other kind of polyp I haven't identified yet which suffered a great deal in the move, but has grown steadily ever since. One light green yuma ricordea (judging from comparing pics online) that's about 2 inches across. One spiney oyster. One small light yellowish sponge (about the size of a garbanzo bean). At least 4 crabs hiding in the rocks. One is quite large (with hairy legs).. two small ones.. and one I've seen that's tiny with slender/delicate claws. I found one crab dead a few days ago on the bottom right under his little cave in the rocks. He'd been torn up and a new crab took over his cave. Poor guy. I left him there so the others could eat him -- 2 days later he was gone. Also found evidence of a new molt, so someone is growing. I did add one brown/white feather duster I bought at the LFS a week ago (couldn't resist) which seems to be doing great.

Conditions

1. The seller had neglected the tank completely for 6-8 months. He'd even left the lights off for several days which he said killed the corals he used to have. All he ever used was tap water and he said it's been at least 6 months since he'd done a water change. There's patches of red, brown, and green algae growing on the glass. He discarded about half the (very dirty) tank water, left some in the tank, and used the rest to keep the rocks he placed in a basin submerged for me to take home. The sand itself shifted forward during the move, so it's a little over an inch deep in the back and 4 or 5 inches deep in the front. (I haven't messed with that yet, but had to unbury the poor sponge when I got the tank home.) I know the sand bed hasn't been stirred at all and it looks deadly. When I tested the remaining tank water, the salt content was way too high... sg was off the scale. I didn't have saltwater prepared yet and no RO equipment, so I mixed fresh saltwater using tap water to correct the salinity, fill the tank, and get the pump running. (The algae on the glass just loves that.) The sg then was right between 1.023 and 1.024 on my hydrometer.

2. Everything is overrun with aiptasia and bubble (grape) algae. I'm working on the aiptasia, zapping them with lemon juice. Don't have a syringe, but a drop dosing thing seems to work okay to force a few drops into each creature. I'm a little worried about excess lemon juice getting into the tank water and what kind of harm I might cause the tank overall. I know I need to manually pluck out the bubble algae, rock by rock, without busting the bubbles and releasing spores.

3. The live rocks are scattered and jumbled up. The move was stressful enough for everything and I didn't want to disturb things even more trying to arrange it nicely. Making it look pretty could wait until later. Also didn't know what was in there or where everything needs to go yet (up high on the rocks or down closer to the sand). My main concern was to keep things as stable as possible. A bulk of the live rock he had was very dense rubble piled high with some nice looking, porous live rock on top. I plucked out a lot of the rubble and threw those into the sump area behind the wall. I have a large tub of very clean looking dead rock that came with another tank I bought. My plan is to submerge one large piece of this dead rock in a bucket of conditioned salt water for a day or two with lighting and a power head running to find out first if any yucky dead stuff comes out into the water. If it doesn't foul the bucket water, I'd like to use it in the new reef scape I make. (Just need to deal with that scary sand bed first and pull out the bubble algae off the small rocks.)

4. It's going on two weeks now and I know that water needs changing. I just got my API saltwater master kit delivered today so I tested samples to see how bad it was. Wasn't nearly as off balance as I expected -- ammonia zero, nitrites zero, nitrates are high at 40 ppm, ph is low at 7.8. Couldn't afford to get the reef master kit yet, so no readings on those parameters. I also got a bottle of Kent Marine PhytoPlex and haven given the tank 12 drops as a supplement to whatever the filter feeders have been eating.

5. There's a protein skimmer I haven't set up yet. The seller said he never used it because there was nothing in there to feed. I felt sorry for the crabs living off whatever they can pry loose from the rocks. Maybe they eat copepods or worms? I've used long tweezers to give them an occasional shrimp pellet when I can tell where the crabs are. Did that about 3 times in all. There's a light film at the top of the water, so I'll get the skimmer running.

Okay... so what to do now? (Here's where you come in.)

I need to sift through all the sand to get rid of any gas pockets that have formed and chase out anything hiding under there that should be removed. Or at least isolate weird critters I might find long enough to identify what they might be and whether or not they're reef safe before putting them back in. And the sand needs to be leveled. Also need to wipe off all those crusty white dots and algae off the back wall behind the rocks. Can't get to the wall at all with the rocks there as they are now. As I move the rocks around, I need to remove every bit of bubble algae I can.

Once I transfer the rocks to several large, wide bins I bought for this.. along with tank water to keep them wet... can I scoop and sift through all the sand at one time? If I disturb a gas pocket and it's released then, will this kill everything alive that's in the sand now?

Can I remove the sand to place base rocks directly on the bottom, then put the sand back in -- so nothing shifts on me later on when I assemble (reassemble) the reef?

How much of the crappy tap water can I safely discard now and refill with new (conditioned) salt water made from 12 gallons of RO water I've bought and have ready? I have all the time I need right now to monitor the parameters and do water changes (if necessary) if what I do triggers a mini cycle, there's a lot of die off from this, or something spikes on me.

I know to not let the sponge come in contact with air at all. I can also use small tubs to transfer each rock to a filled basin so everything stays submerged at all times, including any sand I take out. And I won't mess with the filter, rubble rocks, or media in the back.

There's a great LFS with a marine speciality here just a few blocks away. They'll do whatever water tests I need done for free (since I don't have the reef test kit). What other parameters do I need to check on that's not covered in the saltwater test kit? Please let me know what else I should check before and after doing all this.

If what I'm planning to do now is way too drastic, then how should I do this in stages?

The seller upgraded the lighting from the standard 27 watts to 32 watts (yeah, big deal). There's no heater and I haven't even checked the temp yet. I can add one if it's needed... what should the water temp be?

I'll post pictures of what I have, so far, following this post. Let me know what else I should tell you about this.
 
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Some pics of the current inhabitants...

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Spiney Oyster (Spondylus) with lots of bubble algae nearby.


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Just a few of the fan worms.


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Feather duster.


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Same feather duster, different shot.


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Ricordea Yuma, light green


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Unidentified sponge.
 
Weird, crusty specks on the back wall and glass.. and algae growth. Don't know what this is.

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This is what the tank looked like when I bought it BEFORE it was moved.

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Here's what it looked like AFTER it was moved here, once the water cleared again. Some of the rocks were upside down (corrected that already) and I rescued the sponge that was covered in sand.

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Same view as above, just with the blue lighting on.

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Okay, it's one in the morning, adn i jsut got off of a seven hour shift at the bar..But, i'll see how well the old noggin is working to help you out here :p

First thing i noticed. The 'bubble algae' is cualerpo (Sp?). It's a nuisance Macroalgae. Ighave the same 'grape vine' type in my 12 gallon. I just pick al lthe pieces i see when i see them, and it keeps it under control.
The crab..Well, you'll need to identify it for me first. Sally lightfoot? emerald Mithrax? If its' the latter. keep it in there for sure. They're great algae eaters and scavengers, i have one myself. However, if it's a sally lightfoot (Or an arrow crab, for that matter) you may want to consider removing it. The arrow would eat your feather dusters, and the sally lightfoot has a tendency to be a bit more agressive, as well as growing too large.
The foot long worm. Yeah, I would work on getting that guy out of there. Worms that size can knock over corals (Should you choose to get them). Plus, it's bio-load isn't helping anything.

Okay, and to your questions.
I'll answer with one, simple solution that could help you quite a bit.

Step one :Get a nice siphon hose, and a 5-10 gallon bucket
2. Siphon out, oh, two inches of water (A gallon or two)
Next, siphon out all the sand you can. a little is excuseable, but get as much as you can. By siphoning it into the water, you shoudl save 99% of the lifeforms. Also, it'll help release any gas build up. Given you have inverts, and hitchhikers at that, only, you shoudl hope to be able to keep everything alive. I'd go for an initial 50% water change, then additional 20% water changes every other day for a week or so.

SOme may disagree...I don't think so...Again, i'm tired :p
 
Looks like fun :), what fish you looking into?
 
Thanks for the suggestion to siphon the sand out, Andrew. The only siphoning I've ever done before has had a faucet or spigot at the other end... which clearly doesn't help me with salty water. (What was I thinking getting into this?!?) I did take the precaution of buying latex gloves, in case I run into something that stings, bites, pinches, or just creeps me out. :22_yikes:

Siphoning sounds a lot better than scooping... just hadn't realized (yet) to do that for the sand. Changing out the water in the proportions you suggested sounds real good, too. It's still quite drastic, but nowhere near as risky.

I knew that huge worm couldn't be good news. And if part of him breaks, I'll end up having more than one to deal with. Fortunately, I've been watching the tank enough now to know which rock it lives inside so I'll put that one into a separate container.

Hmm.. then what? How do I get him completely out long enough to remove the rock? If I use some kind of bait trap, he'd still leave his tail end safely in the rock, wouldn't he? If I manage to get it out, what do I do with it? It's too big and icky to squish. I know better than to flush it. Ugghh.

Nope.. it's none of those crabs. So far, I've seen 4 different crabs... they're all different and none of them match anything I can find. The biggest one has got to be trouble. His claws look to be too menacing for someone scrounging up algae. I have blurry pics that might help if one of these is easily recognizable. Will post what I can after this. Guess I should hold off on the tank overhaul too until I replace the digital camera. Lord only knows what I'll dredge up from underneath everything.

snailrider -- I haven't even looked at fish yet for this. I'm already in way over my head just getting a reef tank. And it's only 12 gallons, so I'll stick with whatever is well suited for a complete beginner (with salt) that doesn't mind a very small space. Besides, I'm excited already just having live rocks and fan worms... lol. Getting that spiney oyster in the bargain was a great surprise. (Yes, this is really fun.)

For stocking plans, assuming I can keep this thing alive... I figure one cleaner shrimp. There aren't any snails, so I probably need some of those. (Don't know which kind or how many.) And soft corals since the lighting won't support anything else. Still need to find out about practical fish choices.
 
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Unidentified Crabs

Crab 1 -- Deceased already. Found him first living in this little cave in a rock before Crab 2 took over the spot.

Size is a little over an inch wide. Coloring same as rocks.. medium brown with black face and top of carapice. Hairy back legs.

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Crab 2 -- Slightly larger and bulkier but approx. the same size. Coloring is tan/beige and dark grey.

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Crab 3 -- Very big compared to the first two. Have never seen him out from under the rocks. Coloring and proportions look like a bigger version of the first crab, near as I can tell.

This shows a size reference. The large crab is hiding in the rocks. Was there the whole time Crab 2 was out picking food off the rocks. The following picture shows the shape and form of his claw.

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Crab 4 -- Tiny little dark crab; half the size of Crabs 1 and 2 with slender/delicate claws. Haven't been able to catch him on camera.
 
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