Converting a tank to fresh water - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 9 Old 06-11-2008, 07:31 AM Thread Starter
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Converting a tank to fresh water

Hello, This is my first post at this site. I have a 55 gallon tank that was used for saltwater. It has been in storage for 3 years and I would like to convert it to fresh water. I realize that I can't use any cleaning solutions but what is the chance of rinsing the tank to get rid of all the salt and residue?
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post #2 of 9 Old 06-11-2008, 08:10 AM
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You might try vinegar and warm water then rinse Hell out of it. :D

The most important medication in your fish medicine cabinet is.. Clean water.
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post #3 of 9 Old 06-11-2008, 02:29 PM
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I second that. Just go to town with a hose until all of the bigger chunks of grime and salt buildup are gone, then use a vinegar and water mix and a scrub brush.
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post #4 of 9 Old 06-11-2008, 04:13 PM Thread Starter
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Thanks for your answers. I guess once that is done, I can get a sacrificial fish to see if it lives.
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post #5 of 9 Old 06-11-2008, 05:42 PM
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You might as well kill two birds with one stone and cycle the tank with your guinea-fish. That is if you're ok with cycling using fish.
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post #6 of 9 Old 06-11-2008, 06:27 PM Thread Starter
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I understand about cycling a saltwater tank but I haven't had a freshwater tank in quite a while. I'm not into killing some innocent fish but could you explain cycling a freshwater tank.

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post #7 of 9 Old 06-11-2008, 09:51 PM
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A suggestion would be to buy a brand new sponge, and put the tank in your bath tub. If you have a hydrometer, maybe you could fill it up and measure the salinity, and keep rinsing until there are no salt deposits detected?
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post #8 of 9 Old 06-12-2008, 07:25 AM Thread Starter
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Using a hydrometer is an excellent suggestion. I also have a wet/dry filter with a venturi and I will attempt to clean these and also use the hydrometer on them too. Thanks for the suggestions. If I can't remove all of the salt, then it looks like I will have another marine aquarium.
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post #9 of 9 Old 06-14-2008, 10:23 PM
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Explanation of cycling for freshwater is here
My own personal preference is a fishless cycle for the reason that you gave. I have no desire to harm any fish establishing a cycled tank.
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