New tank doing great from the start, should I be worried?

apos

Member
I got a 55gal reef setup with tons of LR and CC substrate cheap recently. It's got a 10 gal or so sump with bioballs, and skimmer and return pump in a 3 chambered sump, lights, a pretty solid setup all in all.
The thing is, the tank is basically a breakdown/set up of an established tank, rather than starting new, so I'm not exactly sure what to expect or where I'm at: my various levels have been good and stable almost right from the start. 0 nitrites, 20ppm nitates, stable ph, stable alk, no bad trace metals. And none of that has changed. That is, of course, great, but I'm worried that I'm missing something and that the tank will crash.
Basically, the established tank was drained, LR wrapped in wet paper, and transfered. We set the tank up again almost immediately: filling it with prepared saltwater, and letting it run for two days with the LR in it (I know normally you'd add it later, but the guy I got it from said that the longer it was out of a running tank, the more in and on it would die). I measured the levels with test strips, and they were all fine (as above). At this point I drip acclimated and put the survivors from the old tank back in: a clown, a snail, and some hermit crabs. I pretty much expected they wouldn't do too well, but they had no where else to go: it was either in this tank or heaven. But the levels have stayed solid.
It's as if I cycled in just the two days that it was just water and LR. Is this perhaps because the live rock and substrate preserved a lot of the nitrifiers somehow?
After two weeks, the survivors are all fine, and I've added some more snails and hermits steadily. There's a fair bit of detritus building up from, I assume, things on the LR having died and decaying, I assume. I've siphon vacuumed what I can and gone through one 20% water change so far. Little white "trees" (they look more like roots) are growing on the rocks (no idea what these are: they are plantlike, not hydroids or worms), and some purple fuzz on one of the rocks, but otherwise not much algae bloom (occasional tufts are slowly growing, but not going nuts).
Should I be worried that things are just too good to be true for a tank this young, and that this stability can't last?
I'm mostly interested because I'd like to add some more janitorial critters (not planning on going for more fish or corals for months until everything is like clockwork and the water is perfect) but I don't want to start spending money on banded stars, crabs (thinking of getting an emerald, though SWF only sells them in 3s, boo) or shrimp if things are still iffy.
I've got lots of neat hitchhikers in the meantime: a tiny fireworm (detriutus eating kind it seems), a HUGE hair or spaghetti worm somewhere in the rock (one or two tentative transparent tentacles at a time come out every so often to pick at the underside of other rocks), lots of tiny red hair worms, and even a small red/white feather duster, which seems to be thriving. I'm even seeing tiny bugs frolicking on the CC which I assume are pods (hopefully not the bad kind of isos). The surviving hermits have picked out new shells, the clown is frisky (though it never seems to go anywhere near the rocks or deeper than the top 1/4th of the tank) and the snails are eating themselves silly.
 

uberlink

Active Member
You should be fine. I've torn down tanks several times to move them. As long as the rock stays wet and you don't have it down for too long, you shouldn't have a problem.
Wouldn't be the worst idea to consider a switch to live sand from cc before you add too many more critters. Most think it's a better substrate in the longer run.
 

mikeyjer

Active Member
CC is actually fine if you siphon it good on a weekly basis when you do a water change. IMO, I would just have around 1-2" of CC as substrate, it would make your life a lot easier for upkeeps. I've kept both CC and sand, I just like the look of sand better then CC, plus I don't have to siphon my live sand either.... :)
 

apos

Member
I don't really mind siphoning so much: I plan to do weekly water changes, and they pretty much go together. The substrate DOES look fairly old, however, with the deeper layers I can see through the glass looking decidedly ucky. Would it really possible to suck much of that out of the tank with a vac without utterly destroying water quality in the process?
 

mie

Active Member
CC and bio balls are nitrate factories and have to be cleaned often.
Sand looks better (IMO), And weekly water changes are a bit much on a 55, why do that much if you don't need to?
I have a 75 and change out 15 gallons once every three weeks. I have lots of sucess.
 

uberlink

Active Member
I think I would do the weekly water changes as planned. It's like oil changes on a car. Within reason, you can't really overdo it.
 

sepulatian

Moderator
Sand is better for your fish and sifting inverts. Fish get scraped on the jagged edges of CC and inverts have a hard time getting through the cc.
 

apos

Member
Since the water changes double as my chance to siphon, it seems like a pretty decent path at this point. I keep hearing all sorts of conflicting info on bioballs. But it's my ultimate plan to turn the middle section of my sump into a refugium in any case, so they won't last forever. :)
 
S

swalchemist

Guest
Don't worry about your bio balls I have seen bio-balls in healthy tanks running 10 plus years. We had a huge debate about the whole overly quoted and often misunderstood notion of "nitrate factories" not to long ago in our club meeting. The simple fact is that if you are doing regular water changes and maintaining a healthy system you have nothing to worry about. Nitrate is a bi-product of the nitrogen cycle which keeps our animals alive and healthy. If the balls are producing nitrate at high concentrations it means there is an over excess of waste in the system that is not being filtered out by mechanical means such as heavy skimming or filter pads. In a healthy system the bacteria on the balls will not contribute to the tank as the tanks balance can compensate with any micro amounts of nitrate leached. Sounds like you have a nice starting point for a nice reef tank
 

reefkprz

Active Member
IMO the hardest part will be properly siphoning out the CC as detritus settles Under the rocks in the cc where you cant siphon. I think your going to run into nitrate problems down the road. Ideally you should siphon 100% of the CC at every waterchange to get all the gunk out if your going to run with crushed coral. but I know thats virtually impossible.
 

apos

Member
here's the basic tank, sans the top cover & hood. The 3 chamber sump is down below.

I'd really like to add a fuge, but I'd like to DIY either a hang on or something down in or next to the sump. I pretty much have a little less than the size of the sump in free space down below, and I have plenty of room for hang ons (I figure I could do 8gal hang on/next to pretty easily).
I'm not sure how I'd plumb a DIY hangon: I assume there is no way to do it without another pump. The DIY PVC return system doesn't really leave any space for another overflow box, though I'm open to replacing it (it does pretty good all around water flow, but might not be good enough when I move into corals).
If I wanted to do a fuge in my existing sump, I'd have to either put the skimmer in the third chamber (bad), or get a new skimmer that would either fit in the first chamber (after removing bio balls) or be entirely external. I'd also have to do considerable baffling, because the sump basically works like this: chamber 1 is open into chamber 2 at the bottom, and then chamber 2 overflows a wall into chamber 3.
Are there any good designs for a fuge that would basically sit next to my sump? There wouldn't be any way to use an overflow FROM the 3rd chamber unfortunately, because that's where the water level varies with evaporation. I suppose if I reworked my return pump system, I could split it so that it dumped some water into the fuge, which would then overflow back into the third chamber just as fast as it comes in. The advantage would be that if power cuts off, the overflow box in the fuge would prevent too much water from flowing back into chamber #3, though I'd have a lot less leeway than I already have (since the same system already exists for the overflow in the main tank that gravity feeds the sump).
 
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