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sdlTBfanUK

Disaster has struck

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sdlTBfanUK

When I fed my shrimps on saturday I counted 80 and yesterday all appeared well also.

This morning all I can see is dead bodies with a reddish colour shell to the head area.............. I assume it is rust but am not certain, only going by what I have read here.

DSC00527.thumb.jpg.b504f5935592bfe5fce89b39dd52784b.jpgDSC00529.thumb.jpg.0140609df6ad8913ea8752ee6ea8b814.jpg

From what I have read here it could be because the substrate was exhausted and the PH had risen to 7.5 last time I checked (though that was slowly over time)?

I doubt there is much I can do at this stage, but I will set up the old 15L to put any ALIVE healthy looking shrimp in IF THERE ARE ANY! and close down the big tank and start again. I guess I know next time that when the PH indicates that the substrate isn't working properly to act quicker???? When does the learning finish!

My main queries at this stage are:

1) Is it safe to put stuff from this tank with the dead shrimps into the small tank where I will put any healthy shrimps (If there are any alive that is) or will that be a bad idea, I am thinking, water, heater, maybe a plant or 2 etc.

2) How do I make the bad tank good now so that it won't be contaminated for the restart? Tank, filter, heater, plants, decorations etc. I will use new substrate.

Simon

 

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jayc

Whatever it was to have killed all the shrimp in a couple of days is pretty nasty. I wouldn't risk reusing water or plants.

Heater should be okay after a good clean and disinfection.

I would also rip the old tank down and start again. New filter media, new substrate. Everything else scrubbed in white vinegar and rinsed off, then let dry for a few days.

I doubt the pH could have killed everything so quickly, especially if the pH crept up slowly over many months.

It might have been something poisonous to wipe out a colony so fast. Any aerosols used around the house lately, insect repellents?

 

Edited by jayc
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sdlTBfanUK

Diagnosis - cooked shrimp due to heater stuck on, doh! Water 33 degrees! Note to self, get some permanent thermometers to stick on the tank................. was checking with the TDS meter thermometer..........

Sorry didn't get back instantly but been fishing out the few young that don't have any rusty bits and seem to be active and dismantling tank, need to leave the water for a while as too cloudy at the moment. I will put those in the 15L temporarily and hope I can keep them alive until I can redo that tank.

I appreciate the time you spent on your reply JayC. I don't actually know whether there is any disease? I assume then that it should be safe to re-use everything (apart from the heater of coarse, luckily I have a spare of those) like plants etc given this development, or did the ones in the pictures look like they still had rust, I appreciate it must be hard to tell as they aren't good pictures.

Simon

ps I won't be near the computer much today so there may be a delay.

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beanbag

wow, sorry to hear that.

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jayc
13 hours ago, sdlTBfanUK said:

Diagnosis - cooked shrimp due to heater stuck on, doh! Water 33 degrees!

Doh!

At least we know what the problem is. So you should be able to reuse what you need from the old tank except for the heater of course. No need to disinfect the tank or filter media.

 

 

13 hours ago, sdlTBfanUK said:

Note to self, get some permanent thermometers to stick on the tank

I have a better solution. Give me a minute ... I need to find the material, so i can post it here properly.

This is a must have item to avoid future issues like this with heaters. It doesn't matter what brand or how expensive the heater is, they all have a risk of failing and not heating or being stuck on and overheating the tank.

Edited by jayc
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jayc

Okay...

If you want to avoid heaters being stuck on and overheating the tank or failing and not heating, then you need a Temperature Controller Thermostat.

 ITC-308 Digital Temperature Controller thermostat

s-l1600.jpg

I have one of these, clearly the plug type is for AU since I'm in Australia.

I use one of these for single tanks or in sumps.

The thermostat is placed in the tank to keep track of your tank's temps. The controller controls power to the "Heating" or "Cooling" power plugs. You are no longer reliant on buggy heater thermostats. With this unit, you can use the cheapest heater and feel safe in the knowledge that it will never cook your fish or shrimps.

Your heater is plugged into the socket labelled "heater". Preset the controller to turn on heating when temps are below, say 20deg C and turn off at, say 24 degC. 

You can plug a chiller or a fan into the socket labelled "Cooling" as well. 

I bought this off ebay from Inkbird https://www.ebay.com.au/usr/inkbirdau?_trksid=p2047675.l2559

They even have a wifi version now for control over your smartphone.

A quick search on ebay for the keywords " ITC-308 WIFI Temp Controller Thermostat" brings up the same controller in various different plug types that will fit what you use in your own country.

It costs roughly as much as a medium quality heater here in Aus. BUT it's cheap insurance knowing that I will never cook my fish or shrimps. To offset the cost of this controller, I can now buy the cheapest heaters off ebay and still be confident that I won't overcook the tank's inhabitants. 

 

Other uses:

More over you can use it to control fish room temps as well, it's not limited to measuring water in tanks. 

Turn on/off AC or fans or room heaters.

People use it for home brewing. There are so many practical uses.

Note: there is a very similar temp controller called the STC-1000, but this unit requires you to add your own cabling. Whereas the Inkbird is a lot more convenient.

Hopefully this helps someone and their pets.

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sdlTBfanUK

Thanks guys for the advice and support, it is much appreciated.

Yesterday, luckily a friend was round so we got to empty the tank, very sad to see so many dead shrimps, so all the plants etc are in a bucket with the old water. I fished out 10-20 shrimps that seemed ok (not got the courage to look yet today) and in the process of getting those into the old 15L temporary home for probably a week. I ordered the substrate 'shrimp king' and that was sent yesterday and should arrive today, and a thermostat to stick on the outside.

I will look at what you recommend JayC at some later stage when it is all back UP and RUNNING again, and I can relax a bit!

You are right JayC, although it is a disaster, it is good to KNOW what caused it and as you say heaters break, though before when they have broken to where they didn't work, which just meant the occupants just got a bit cold and caused no problems, but it is a valuable lesson learnt. I will get thermometers for the other tanks as well, but only ordered one at this stage to see if I like it and it works etc.

I have ordered 2 x 4L shrimp king soil as they say that needs no preparation and very quickly the shrimp can then go back. I was planning to put double the amount I used previously (so thats 6L, though that was a different substrate) so it will be about 1.5 inches. Any advice on that would be appreciated? And as you say JayC I will pretty much use the plants etc from before.

I appreciate the advice and thoughts a lot, thank you both!

edit - Total wipeout as the ones I fished out still died! It does mean I don't need to hurry to set everything up at least and I will need to go shrimp shopping sometime in the summer.

Simon

Edited by sdlTBfanUK
update

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