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Old 05/22/2018, 12:30 AM   #1
jubbilee555
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When can I add snails and Hermit Crabs?

I took my coworkers established reef tank a week ago. I'm having a brown algae/diatom problem so I'm assuming it's going through a mini cycle? There are some snails and hermit crabs currently that are trying their best but it's pretty unsightly.

I was wanting to add more invertebrates at some point anyway but now especially with the brown algae outbreak, can/should I add more now? Or should I just keep scrubbing it off and wait it out...

PS Feeding EOD, running a refugium, using tapwater that sits out for 1-2 days (I've read about ro/di and would consider in the future but not in the budget at the moment). I've also read about using either vinegar or vodka but there's sponge growing in the tank and as I understand it may have a negative effect on that? Tank currently has 2 tangs, 1 clown, 3 chromies, couple of cleaner shrimp, snails, hermies and a few lps corals.


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Old 05/22/2018, 04:48 AM   #2
RobZilla04
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Welcome!

What does your gut tell you? A cycle has nothing to do with algae or diatoms. You need to know the ammonia and nitrite levels. When you say you "took" the tank, exactly how did you take it? Was everything removed to transport?


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Old 05/22/2018, 06:13 AM   #3
Uncle99
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Tap water should not be used, you’ll spend 50 times the cost of an RODI unit controlling algae.
Reef tanks require this.


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Old 05/22/2018, 06:22 AM   #4
mcgyvr
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Some algae/diatoms should be expected and tolerated in a new tank or a tank post move..
Provided you keep up with proper maintenance it will typically go away..

Do you have test kits?
IF so please post results from every one you have..
Nitrate? ammonia? nitrites?

There is no problem carbon dosing with sponges in a tank either


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Old 05/22/2018, 12:43 PM   #5
oldhead
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You are definitely going to need the rodi. You have two options until you get the unit to make your own. You can buy the rodi or you can buy premade saltwater for water changes. Remember you have to top off your evaporation with rodi not saltwater. As for adding the snails, you can probably add them now as long as there is no ammonia. I had hermits and snails survive a month long cycle when I upgraded to a larger tank. Ammonia wasn't present for more than a day or two, but nirites were high for awhile.


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Old 05/22/2018, 04:09 PM   #6
lapin
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Quote:
Originally Posted by jubbilee555 View Post
I took my coworkers established reef tank a week ago. I'm having a brown algae/diatom problem so I'm assuming it's going through a mini cycle? There are some snails and hermit crabs currently that are trying their best but it's pretty unsightly.

I was wanting to add more invertebrates at some point anyway but now especially with the brown algae outbreak, can/should I add more now? Or should I just keep scrubbing it off and wait it out....
If the tank was lookin good when your co worker had it, you should ask what was being done to keep it lookin good. My guess is that if you are following the same regiment and you have the ugly stuff, then by moving it ,you disturbed some of the bacterial balance. it should pass as time goes on.


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Old 05/23/2018, 10:01 AM   #7
scooter31707
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IMO, I would leave out the hermit crabs. IME, they will kill off snails for their shells.


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Old 05/23/2018, 10:14 AM   #8
MattTheFishNerd
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if there's no ammonia or nitrite showing up when you test, then go right ahead with snails or hermits. The diatoms will go away in time. If you can't test yourself, your local fish store should be able to test it for you.

I also have had my hermits kill my snails for their shells. In my case it was a black legged hermit killing a nassarius snail.


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Old 05/25/2018, 07:11 PM   #9
jubbilee555
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I'm looking into one of the lower end rodi systems on Amazon (around$100 CAD) which i know isn't the best but should be better than tap at least.

I had my water tested at my LFS and everything is normal except for slightly increased nitrates. Changed the direction of some of the powerheads, dimmed the lights a little, and have been diligent about siphoning and dusting. It's looking a bit better algae wise.

Do i need to wait until everything is normal before i add more snails or hermies?? If i had to choose one over the other i prefer the hermit crabs but are the snails more beneficial?


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