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Retirement and forum shutdown (17 Jan 2022)

Hi,

John Howell who has managed the forum for years is getting on and wishes to retire from the role of managing it.
Over the years, he has managed the forum through good days and bad days and he has always been fair.
He has managed to bring his passion for fish keeping to the forum and keep it going for so long.

I wish to thank John for his hard work in keeping the forum going.

With John wishing to "retire" from the role of managing the forum and the forum receiving very little traffic, I think we must agree that forum has come to a natural conclusion and it's time to put it to rest.

I am proposing that the forum be made read-only from March 2022 onwards and that no new users or content be created. The website is still registered for several more years, so the content will still be accessible but no new topics or replies will be allowed.

If there is interest from the ITFS or other fish keeping clubs, we may redirect traffic to them or to a Facebook group but will not actively manage it.

I'd like to thank everyone over the years who helped with forum, posted a reply, started a new topic, ask a question and helped a newbie in fish keeping. And thank you to the sponsors who helped us along the away. Hopefully it made the hobby stronger.

I'd especially like to thank John Howell and Valerie Rousseau for all of their contributions, without them the forum would have never been has successful.

Thank you
Darragh Sherwin

Marine Question

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24 Jun 2008 19:22 #1 by Sinbad311 (Simon Kennedy)
Hi,

Is it possible to add more live rock to a tank if it is fully cured?

Also is it better to add substrate before or after rocks are in tank?

Is argonite neccessary or will coral sand do as it will become live over time?

cheers in advance,

Simon

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25 Jun 2008 07:19 - 25 Jun 2008 07:19 #2 by Seany (Sean Phelan)
Sinbad,

Be very careful that the live rock is indeed \"Cured\" You don't want to disturb the existing occupants in the tank with an ammonia/nitrate/nitrite spike!

I would place the live rock first and the substrate after. This has two advantages. 1. The rock is not sitting on the substrate and thus creating \"dead areas\" and 2. The rock will be more stable if you have a digging goby for example that will shift sand from under the rock structure and thus may lead to a collapse with a possible cracked/smashed tank.

Kind regards

Seany
Last edit: 25 Jun 2008 07:19 by Seany (Sean Phelan).

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25 Jun 2008 07:30 #3 by Sinbad311 (Simon Kennedy)
Cheers Seany,

Any opinion on the Argonite over coral sand as a substrate???

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25 Jun 2008 12:26 #4 by Seany (Sean Phelan)
Sinbad,

I googled this one!

Aragonite is the substrate of choice for the best kept reef aquariums because of it’s ability to dissolve, releasing beneficial minerals into the water.Substrate, including
aragonite, can create a home for beneficial bacteria, protozoa and other microbes but nothing has been found which equals the ability of a good aragonite substrate in helping maintain proper pH, alkalinity(carbonate hardness), calcium and a few other trace element levels.

Three common minerals are commonly found in marine substrates: calcite (quartz), dolomite
(Great Salt Lake sand) and aragonite. Calcite and dolomite are essentially insoluble so they are of no worth to the aquarist.Aragonite comes from Halimeda (marine cactus algae), coral and specific mollusks, such as gastropods. Calcium is used in their
living structure which, after the death of the organism,easily dissolves into seawater. Another of aragonite’s advantages is it’s composition of soluble strontium and magnesium.
The third advantage of aragonite, over calcite and dolomite, is it’s more porous structure creating more surface area for bacteria, with all the known benefits.

Kind regards

Seany

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25 Jun 2008 13:50 #5 by Sinbad311 (Simon Kennedy)
cheers Seany. Aragonite it is so.

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02 Jul 2008 13:18 #6 by newrossman (newrossman)
Hi,
Other option is place some 1\" PVC pipe in a grid form you really want to try to keep rocks off sand completely but as above you need to keep stable.

Reef 55 Gallons

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