Small native marine

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05 May 2016 09:24 #1 by LemonJelly (Johnny Cowley)
Question from a freshie (salty virgin if you will!)...
How difficult would it be to keep a very small (70L) native marine tank? I mean very lightly stocked, perhaps only 2-3 fish if that. What would I need? What problems would I face?

Let me know what you think...

"The only thing that burns in Hell is the part of you that won't let go of your life; your memories, your attachments. They burn them all away. But they're not punishing you.They're freeing your soul."

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05 May 2016 10:27 #2 by JohnH (John)
Replied by JohnH (John) on topic Small native marine
The first problem I came up against LJ was that of keeping the volume of water cool enough during the Summer months, and the smaller the tank, the more quickly the volume of water warms up.
This, ultimately, was what was the deciding factor for me in my having to abandon the hopes of setting one up.
Of course things like chillers can be used, but the expense of these - plus running costs - were just beyond my finances.
Perhaps others can add to my (albeit limited) findings?.

John

Location:
N. Tipp

We're just two lost souls swimming in a fish bowl - year after year.


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05 May 2016 10:39 - 05 May 2016 10:40 #3 by MarinusAddictus (Marius Schudel)
Nice one LJ, never too late to start into Native salt :cool:

In a nutshell...

Yes I think its possible, keep about 7cm of live sand from low beach as bottom as it will help massively in the detritus breakdown, keep a good cleanup crew (Hermits, prawns, Netted whelk, and loads of cushionstars)
Try to not overfeed and try to stay away from Scorpion fish and Blennies (high bioload, and they eat ANYTHING) unless you have a good supply of fresh seawater and periwinkles for food.

The temperature is a big factor depending on where the tank is but you would be surprised how many (in fact almost anything you find in mid to high pools) species are extremely hardy and can deal with temps up to 24degC, including Anemones. LED lights will drastically help keeping temps down. Checkout these two posts from AnBollenessor about species suitable for unchilled tanks.
anbollenessor.wordpress.com/2013/08/01/t...hilled-aquarium-5-1/
anbollenessor.wordpress.com/2013/07/23/t...illed-aquarium-10-6/

If your priority is not to grow Seaweeds, unchilled should be fine but its not easy not to be tempted to bring in loads of seaweed that then mostly will not make it and eventually raise your phosphates (learnt the hard way)

Friend of mine has a 25l tank since over a year and hardly ever does waterchanges and its doing fine, no fish though. He even has copepod blooms prawns breeding etc.

Hope this helps
Let us know how you get on
Last edit: 05 May 2016 10:40 by MarinusAddictus (Marius Schudel).

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05 May 2016 10:53 #4 by LemonJelly (Johnny Cowley)
The cooling was the first problem I thought I'd run into. I was considering a diy cooling system with a small fridge, the kind that are only about 20 inches high.
Do need a protein skimmer or are they only for bigger and/or tropical?
And that leads me to the warmer water types; could a clownfish, for example, be kept in such a small tank? How hard would it be to maintain? (I could see that being an issue for me)

"The only thing that burns in Hell is the part of you that won't let go of your life; your memories, your attachments. They burn them all away. But they're not punishing you.They're freeing your soul."

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05 May 2016 11:17 #5 by LemonJelly (Johnny Cowley)
Very helpful links btw

"The only thing that burns in Hell is the part of you that won't let go of your life; your memories, your attachments. They burn them all away. But they're not punishing you.They're freeing your soul."

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05 May 2016 11:53 #6 by MarinusAddictus (Marius Schudel)
I would stay away from the fridge idea. I was thinking about that too when i started off. Check the wattage on a fridge its about 120W, my chiller has 750W, and with the fridge you loose tons of efficiancy so you wont really make an impact.

I think since you wont have tons of equipment (that adds heat) in a small tank and if you go with LED and be smart about where to place the tank you should be fine if you stick to hardy creatures.

Clown fish? I thought you want to go native? Dont know anything about them ;-)

Skimmer is more needed of you have a lot of biomass (feeding, fish) added to the water, if you keep it simple and do frequent waterchanges it should be grand. For a skimmer you really need a sump, otherwise you will always have waterlevel and microbubbles issues.

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05 May 2016 11:56 #7 by LemonJelly (Johnny Cowley)
Ok, cool. I have a project to think about then!

"The only thing that burns in Hell is the part of you that won't let go of your life; your memories, your attachments. They burn them all away. But they're not punishing you.They're freeing your soul."

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05 May 2016 12:02 #8 by JohnH (John)
Replied by JohnH (John) on topic Small native marine
I feel (hope) a 'blow-by-blow' account's in the offing if you do decide to get this project up and running - I, for one, would be very interested.

John

Location:
N. Tipp

We're just two lost souls swimming in a fish bowl - year after year.


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05 May 2016 12:12 - 05 May 2016 13:16 #9 by LemonJelly (Johnny Cowley)
Definitely... especially since I'll be DIYing.

"The only thing that burns in Hell is the part of you that won't let go of your life; your memories, your attachments. They burn them all away. But they're not punishing you.They're freeing your soul."
Last edit: 05 May 2016 13:16 by LemonJelly (Johnny Cowley).

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05 May 2016 13:06 #10 by robert (robert carter)
would be extremely interested in a blow by blow account of this project ,as have sort of been wondering about a small marine tank down the line a bit after I get my current project up and running .

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05 May 2016 13:27 #11 by MarinusAddictus (Marius Schudel)

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05 May 2016 17:21 #12 by LemonJelly (Johnny Cowley)
Very cool (ha!) little chiller. If only they were available here :hammer:

"The only thing that burns in Hell is the part of you that won't let go of your life; your memories, your attachments. They burn them all away. But they're not punishing you.They're freeing your soul."

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