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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

Overdosing liquid carbon

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28 Apr 2013 21:26 - 29 Apr 2013 21:56 #1 by mars (Gedas)

Hi to all,
I have a question, did overdosing liquid carbon could cause bacteria bloom?
Story is I re aquascaped my fish tank 2 months ago, and after few days I have to leave country for 2,5 weeks, and my girlfriend was looking after, so no water changes, and instead liquid carbon she been dosing ferts, so then I came back, I couldn't see any plants, only all sort of algea, and the worst thing all bottom of the tank was covered with green blue algea, I did a lot of water changes 50% every 3 days, a lot of algea gone, but not fully, I have pressurised co2 but ading liquid too , with reason ,cause I have heavy planted tank, and a 200wats of light on 275 litres tank., since I came back water all the time cloudy, even if I'm not turning filter off( the filter is fx5 over 2kg of ceramic balls only, and filter floss) then doing water changes, all parameters good, all tested, I was ading tap water mixing with RO same result, ading RO water only, same thing, all plants growing fine .every nite air pump is on, and day time is off, this morning before wok didn't added any liquid carbon, but water still remains cloudy, never came around such a thing before, bacteria bloom all the time.
So if anyone has any idea, can share with me.
Thanks
I will add picture later.
Attachments:
Last edit: 29 Apr 2013 21:56 by mars (Gedas).

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30 Apr 2013 21:20 - 03 May 2013 18:24 #2 by mars (Gedas)
I found a problem I have, this is green water algea, any good advice?
I'm doing 40% water changes every 3 days, on some fast growing plants you can't see any algea, but moss and my hemianthus Cuba covered with algea. I'm not dosing any ferts at all.
Last edit: 03 May 2013 18:24 by mars (Gedas).

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05 May 2013 21:21 #3 by mars (Gedas)
I think I should get uv steriliser to fight against green water algea.
Any advice about this?
But problem is I'm no space in my cabinet or on my filter outlet hose to fit any more stuff, cause I have connected hydor filter, co2 atomiser. And to connect on inlet I think not really good idea.
I was looking at the "Green Killing Machine" UV Sterilizer.
Maybe some of ye could give me some advice,

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05 May 2013 22:03 #4 by JustinK (Justin Kelly)
What does it look like now ?
maybe next time just leave CO2 pressurised until you return..
You will have to take out as much algae as you can or else it will keep growing.

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05 May 2013 22:53 #5 by mars (Gedas)
Now looks even worst, not much algea on the plants but, problem with green water, don't know even what to do any more.

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06 May 2013 09:54 #6 by JustinK (Justin Kelly)
Stop changing the water, this only feeds the algae.
Check your lights arent too strong or on too long.
Most likely it is too much CO2/ferts.

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06 May 2013 21:10 #7 by mars (Gedas)
Even if I'm using RO water?
My lights are 2x39w aqua medic plant grow,2x39w 4000k jbl solar tropic,1x39w dennerle 6000k,1x39w dennerle 3000k, aqua medic I have 5 hours on, and the rest I have 8 hours on, my tank is made by order and quite high 65cm, all together 275 litre, so something like 1w per litre. I'm not dosing any ferts, and hard to say about co2, but I ordered co2 drop checker, and 24 wuv sterilizer, I really hope this will help to sort green water algea problem.
Thanks Justin

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07 May 2013 12:01 #8 by JustinK (Justin Kelly)

Even if I'm using RO water?
My lights are 2x39w aqua medic plant grow,2x39w 4000k jbl solar tropic,1x39w dennerle 6000k,1x39w dennerle 3000k, aqua medic I have 5 hours on, and the rest I have 8 hours on, my tank is made by order and quite high 65cm, all together 275 litre, so something like 1w per litre. I'm not dosing any ferts, and hard to say about co2, but I ordered co2 drop checker, and 24 wuv sterilizer, I really hope this will help to sort green water algea problem.
Thanks Justin

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07 May 2013 21:24 #9 by mars (Gedas)
Dimensions of the tank is 100L x50W x60H

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08 May 2013 05:03 #10 by Hicker12 (Stephen Hickey)
Hello Mars,

Most algae is caused by a nutrient imbalance and or two much light. As a good starting point aim for around Nitrates 10-20ppm, Phosphates 1.0-2.0 ppm, Iron 0.1-1.0 ppm, Potassium 10-20 ppm.

Not adding any ferts but adding co2 will cause an imbalance also from the looks of your pic your adding too much co2.

Green water is caused by Ammonia and high light so try reducing lighting hours. A UVC will help green water but if you have an nutrient imbalance you will be fighting a loosing battle.

Can post your nutrient levels and Ammonia level? If your filter is not fully cycled yet you will have high Ammonia which will add to your algae problem.

Hope this is some help.

Stephen.

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08 May 2013 06:37 #11 by mars (Gedas)
Thanks Stephen ,
On picture,you can see co2 diffuser , but I run air into the tank true this.in the night time, and for the co2 I have inline setup, connected to dennerle control unit to keep stable, ph.
This evening I will check nutrient and ammonia levels, and let you know.

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