ReeferJen

Replacing rock in established biocube

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Hey all, I've an established 14g biocube. I still have the original sand from 8 years ago when I started my tank. I have replaced the rock once about 6 years ago due to an invasive zoanthid. So, my cousin just hooked me up with a friend of hers that is getting rid of the entire contents of her tank because she doesn't have the time to dedicate to it anymore, so I am jumping on it. I have a beautiful blue mushroom that has grown everywhere in my tank. It's very invasive. It has taken out a lot of my cool corals I've had over the years. There's probably 100 of them in the tank, various sizes. Some are 3-4 inches wide. Getting rid of ALL of the rock is the only option to rid my entire tank of these f*ers. So, could I replace just about all of the rock in my tank and put the rock from her tank in without killing the current corals I have? I've got a nice set of Duncans, a favia, some blastos, and a few other small things, most of it sitting in the sand staying away from the wrath of those things. I've got a pair of clowns that are about 6. Would replacing the rock hurt my fish? I don't have an extra tank to set up to cycle or anything, so not sure how to handle this.

Thanks!

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So long as you keep the rock submerged in water during transport, everything should be fine. Sometimes a mini-cycle (brief ammonia spike) can occur when you disturb a tank like this, but an ammonia alert badge and some Prime will cover you if that happens. The main thing I would be worried about is does this rock come with any coral pests or encysted stages of fish diseases (like ich or velvet).

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16 hours ago, Humblefish said:

So long as you keep the rock submerged in water during transport, everything should be fine. Sometimes a mini-cycle (brief ammonia spike) can occur when you disturb a tank like this, but an ammonia alert badge and some Prime will cover you if that happens. The main thing I would be worried about is does this rock come with any coral pests or encysted stages of fish diseases (like ich or velvet).

Yes the rock will be in water when transporting to my house. I dont dose anything, never have...so I dont even know what an ammonia alert badge and Prime even are. lol. People have always been amazed that my tank looks as good as it does without dosing anything. I'm saying..nothing. I own no chemicals whatsoever. lol. I am on top of my water changes..thats it (I honestly never even check my salinity). So, if a crash does happen I wouldn't even know how to fix it. I only got one picture of the tank so can't see the rock close enough to see if there are any pests. There are no fish at all though, just some corals and snails. I'll inspect everything good in the water before putting anything in my tank. You think I could switch over like one piece of rock at a time every 2 weeks or so? Maybe exchanging that way might make things less likely to cause a crash.

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24 minutes ago, ReeferJen said:

You think I could switch over like one piece of rock at a time every 2 weeks or so? Maybe exchanging that way might make things less likely to cause a crash.

That would be a safer way of doing this. Just keep the "new rock" in a sterilite container with circulation and a heater.

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5 minutes ago, Humblefish said:

That would be a safer way of doing this. Just keep the "new rock" in a sterilite container with circulation and a heater.

I dont have a heater. I've never had a heater in any of my tanks. Wasn't sure if I needed circulation or not but I have extra pumps so I can make that happen. Thank you!

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