Starting with Used 55 gal w/Used Live Rock/Sand no livestock

farfromsea

Active member
Hello everyone,

I've been wanting a saltwater tank for almost a decade now and I'm finally biting the bullet and getting one. I was very fortunate to find an attractive used setup on Craigslist that is being discarded due to the owners' increased travel for work.

Anyhow, I've been trying to research how to deal with the live rock/sand. It seems that many people buy empty used setups or they purchase a setup with live rock/sand that has fish/livestock in it.

In my case this is a 55 gallon cube with a lower sump, protein skimmer, pumps and some live rock on top with sand that I presume is somewhat alive as well. The tank previously had fish in it, but none now. The live rock has been kept wet and the owners are going to breakdown the tank for me and put the live rock in buckets with water to reduce die-off. Picking up the setup Sunday and planning ahead for the cycling.


I'm going to take this slow. Very pleased to find that things have changed and no one cycles with damsels anymore. However, my main question(s) are about my approach to cycling the tank.

My concerns:
1) the sand bed is only a couple of inches but I am concerned about major die-off in the tank when I set it up in my home. Is this an issue? Perhaps not if there is no livestock but I have read recommendations to just switch the sand out

2) Debating how I should cycle the tank.

Options
(a) purchase reef mature pro kit from Red Sea since I like following rules and steps or
(b) sprinkle in some fish flakes and encourage the nitrogen cycle to get started or
(c) put everything in the tank and wait for an ammonia spike/die-down which I presume will be inevitable? however not very much growth on the live rock (see pic) or
(d) add the biospira the owner is including with the sale, however I've read it
is useless so not really inclined on this option

Concerns with the options
(a) reef mature pro kit + testers costs as much as a couple+ fish and the owner is giving me test strips already (yes I know strips are difficult to read compared to the test tube kits)
(b)/(c) not sure how long to keep lights on if I do the fish flakes or wait-and-see. I've read 6H and ramp it up to 10H slowly but red sea just dives in with 10H. also not sure if I should leave the protein skimmer off for a few days with these methods
(d) biospira just introduces bacteria in the tank and there might already be some so why bother? I've also read it can lull you into thinking your nitrates/nitrites are low and confusing your readings? (doesn't make a lot of sense to me scientifically however)

3) per my reading the order should be that when nitrates/nitrites/ammonia are 0 then should add the CUC followed by livestock (slowly). I want to have a reef-safe tank for future expansion so my plans is CUC=cleaner shrimp and livestock= pair of clowns. Needs to be cost-effective hence only one cleaner. Turbo snails are cheaper but I've read they can fall over and die if not righted again and the last thing I need is death/ammonia.

Very much appreciate your time and any feedback you may have!
 

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Hi Welcome to the forum.

I would personally add new sand(aragonite). I prefer to get just dry sand and rinse it of really well. If you want to keep the old sand I would rinse all the accumulated crud out of it before using it.

As far as cycling I prefer to add some pure ammonia to the tank. I like to get the level up to 2-3 ppm and let nature take its course. I have tried the bacteria in the bottle a couple times and did not see any benefit. Some folks swear by it but either way the tank will get cycled.

There is a sticky at the top of the forum called setting up, look for the big red arrow. It is full of good info. Good luck just my 2 cents.

Forgot to mention when the ammonia and nitrites get to zero then you can do a water change and start adding things in. Waiting for the nitrates to zero out could be a very long wait.
 
Thanks! I finally found that section and will be reading. Lots of pages to go. I will report back once I get things setup and cycling...
 
Hello again everyone,

So I picked up the tank; it has only been in their possession for the past 7 months and for at least the last 1 month the tank has been empty of organisms. The sand looked pretty great to me and was not sticking together at all so there is probably not a lot of bacteria in the sand. They gave the sand to me in a bucket of RO water (which I just now realize is probably the drinking water from those dispensers at grocery stores that they recommended I use...) They took the live rock out of the water the morning I picked it up and put it in a container for me with an inch of water. It was still moist by the time I was finally ready to aquascape so I rushed off to the LFS to get some RODI water for the tank.

Anyways, I set everything up and discovered a small hermit crab was still in the sand and is still alive, wandering around the tank somewhere.

I aquascaped: critiques welcomed.

My more pressing concerns are:

1) The skimmer is a Berlin triple-pass skimmer which per my research here is considered garbage. I eventually intend to make this a reef tank but is this skimmer going to be a concern? Not sure if it is sufficient for my size of tank (55 gallon +10-12 gallon sump)

2) If I keep the skimmer should I had a phosphate reactor?

3) How much water should I put in the sump? Currently (see pic) the sump is a 30" long glass tank with approximately a 27 gallon capacity. The previous owner kept about 12.5 gallons of water in the sump reaching a height of 8". I was reading that the depth of water needed should reflect the protein skimmer's requirements...per the manual the skimmer should be under 6-8" of water.

Taking the skimmer over to the LFS to make sure I'm setting up the skimmer correctly. As well I'm bringing my water in to get some water testing done. I have some strips that came with the tank but I question their accuracy. They seem to suggest there are some nitrites/nitrates in there (as there should) but they are impossible to read
 

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Everything is going fine so far but I am having major temperature problems. My home is kept at a constant 78* F but now the tank has reached 87* F. I had the heater on for a few days because the water was at 74* and then once it got up to 81* I shut the heater off because even lowering the heater wasn't helping control the temp. Do you think my thermometer is broken or is it possible for a tank to reach 87* in a 78* house?
 
All heaters should be calibrated with a trusted thermometer. It is not unusual to see the actual temperature a heater will heat a tank to off by more than 5 degrees from the number indicated on the dial. Also note that when heaters break they most commonly stick in the always on position rather than the off position. You need to test the thermometer to see if it is accurate or even stuck in the on position.
 
I'm really hoping the thermometer is broken because now the tank is at 90 which is weird because it rained today and my house feels cold now. Anyways, I haven't had the heater plugged in at all (the only way to turn it off is to unplug it I believe) for the past 3 days. My concern is that the single pump I have running in my sump is generating enough heat to raise the temp by 5-10 degrees above the previous temp. Is that likely? I think it is a Rio 1800.

Likely going to take the thermometer to the LFS (if they are open on memorial day) to check it against their known temps and if it is broken definitely not buying a digital again
 
Just a tank update. Everything has been going relatively smoothly for a while now. I ended up finding out that digital thermometer was completely garbage so I've changed to using a traditional thermometer in the tank.

Anyways, a very generous person in my local aquarium exchange group gave me a massive frag of a branching-type Montipora (montipora spongodes) and a few bits of plating Montipora as well. I'm pretty excited about them and spent the greater part of the afternoon trying to determine how to super glue frags into the tank with limited success. The powerhead eventually blew the plates off of the rock so now they are just lying their precariously...

Definitely not the most beautiful tank ever but it is a work in progress. I took one of the pieces of rock I had on the right down and placed it in the center of the tank for now because I have no idea what to do with it...and looking at these pictures I can totally see a massive amount of debris on the side of the tank so hopefully my conch gets back there and stirs it up!:facepalm:

Tank population is only a CUC
1 cerith snail
1 scarlet skunk cleaner shrimp
1 tiger conch
1 creamsicle sailfin molly (F)
1 silver sailfin molly (M)

Jawfish coming soon...

JVKBpd


JVKBAA
 

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Another pic. Do not know why I cannot embed flickr links with the or why this file is failing. It is probably too big even though I took it on my iphone so it is garbage quality/size.

[url]https://flic.kr/p/JVKBAA[/url]
 
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