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Old 02/12/2018, 07:00 PM   #1
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Join Date: Aug 2012
Location: Corona, CA
Posts: 50
Exclamation Need advice on how to literally clean poison from tank

Hello, hoping for some good advice here with a potentially bad problem.
So I getting ready to tear down my 120 tank to replace it with a glass tank. (Also I really need a aqua scape remodel)
In preparation for this I bought a couple 20 gal tanks used from LFS that going out of business. I built a double high stand in my garage for the 2 tanks with room under for a sump also.
I had this setup running great until one of my unsupervised 7 yo twin boys decide to make their own addition to the system. One of them tossed a container of amoro ant blocker (itís this granular ant killer stuff that actually works good for ants ) i wasnít open but I know it got in the water because the container filled with water. Apparently the active ingredient is Hydramethylnon 0.88%.
My question here is how would you guys try and clean this??? Is it possible to feel ok about this setup again??? Should I just be tossing the hole thing out??? (The setup, not the kids)
Any advice would be great.

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Old 02/12/2018, 07:12 PM   #2
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Location: Port St Lucie, FL
Posts: 178
I doubt if anything is seriously wrong. You could run carbon do a 100% water change if it makes you feel better. Or tear them down, clean with bleach and fill back up.

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Old 02/12/2018, 11:03 PM   #3
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Thanks I’m thinking the bleach route and running carbon for a while after.
Maybe cycle it with a damsel like a canary before I put all my corals and fish I care about in.

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Old 02/13/2018, 12:11 AM   #4
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Location: Westminster, CO
Posts: 16,677
As far as poisons go it's pretty mild unless you're an ant or a roach. LD50 on rats is like 1000mg/kg.

I would just do a water change and run carbon. I doubt anything will come of it.

Bleach oxidized organics. I don't see what it would do for poisoned rocks.

Hobby Experience: 9200ish gallons, 26 skimmers, and a handful of Kent Scrapers.
Current Tank:
Vortech Powered 600G SPS Tank w/ 100gal frag tank & 100g Sump. RK2-RK10 Skimmer. ReefAngel. Radium 20k.
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Old 02/15/2018, 03:08 AM   #5
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Location: Corona, CA
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Thanks again for the advice. Fingers crossed my new tank will be here in 2weeks so I’ve got to get this thing going so I can start braking down my 120

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