I think I figured it out

phin

Large Fish
Oct 21, 2009
218
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0
#1
So those obscure fish deaths I had last week and the crazy ammonia/pH readings...I think I've figured it out.

My ammonia was fine all along and never spiked. My test kit was faulty. The test kit I purchased last year was a Marine Enterprises International Fresh and Saltwater Ammonia Test Kit. I have no idea when it was manufactured but I got it marked down at a discount pet supply store.

I bought an API Ammonia Test Kit tonight and tested both tanks and tap water with the API and MEI test kits. API said NO ammonia in all readings. MEI gave ammonia readings from .05 - 1 in all three samples.

No more cheapo test kits for me.

I tested my pH again and it is still high in the 18g. My liquid test only goes as high as 7.6 and it is at least 7.6. I also have API test strips (graduated every 0.5) and the 18g reads close to a pH of 8.0.

So I'm going to go with what my LFS told me the other day, that my pH and alkalinity are off the chart high. I'm embarrassed to admit it, but I've been thinking back and I think there is a possibility I fed my fish after I put the cube of dishwasher detergent into the dishwasher. That means there was a possibility I put a few specks of powdered dishwasher detergent into my tank.

This would account for the raise in pH from 7.2 to over 8 (before water change) and the death of 9 of 11 fish.

On the bright side I've got two real troopers who have had the pH ride to remember. 7.2 to over 8.0 into a tank @ 7.2 back into the tank @8.0 and then back to 7.2. No wonder all my fish died.

Two things I've learned:
1. Don't buy old discounted test kits
2. Buy pH test kits with as much narrow detail as possible.
3. Test your pH.

ok, 3 things.


Now that my 18g has no fish I'm going to try and remove all the snails while I get the pH back and steady. Any ideas for killing snails without harming my plants? The copper sulfate does nothing.
 

Doomhed

Large Fish
Feb 11, 2003
687
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0
42
Rhode Island
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#3
You could also crank the salt content up into the stratosphere or break down the tank completely if you arent attached to keeping the plants alive or if you can move them to the quarantine tank with your surviving fishes.
 

phin

Large Fish
Oct 21, 2009
218
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#4
The large anubias is sprouting a new leaf, only the second one in 8 months. All the crypts look real strong and are starting to grow well and the hygros are getting large, so I am kind of attached to the plants and don't want to move them.

What if I spiked my tank with some ammonia? Since there aren't any fish in there if I put some clear ammonia in the tank and raised it to over 8ppm do you think that would kill off the snails while not impacting the plants much?
 

phin

Large Fish
Oct 21, 2009
218
0
0
#5
New idea:

I have no fish currently in the 18g (both are in the 20g with the driftwood, java ferns and java moss). I've tried the "water bottle trick" to catch snails to no avail.

Instead of spiking my ammonia up, would dosing my tank with the recommended dosage of formalin kill my snails? I'm guessing it would, but would it kill my biological filter?

I'm split between adding ammonia or formail but also contemplainting "borrowing" a loach from the LFS to eat all the snails. How effective are loaches in this regard? I know they are cited as being snail eaters, but if I got one clown loach for a week would it eat a few hundred MTS?