Tropical Fish Keeping - Aquarium fish care and resources

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iamntbatman 05-28-2008 01:18 AM

Ack! Pop-eye!
1. Size of aquarium (# of gallons)
20 Gallons

2. Is your aquarium setup freshwater or brackish water?

3. How long the aquarium has been set up?
November '07, but the tank and inhabitants were both physically moved about an hour drive almost a week ago

4. What fish and how many are in the aquarium (species are important to know)
5 zebra danios
2 dwarf gouramis
2 black mystery snails
3 peppered cories
2 kribensis + fry

5. Are there live plants in the aquarium?
Java fern and hornwort

6. What temperature is the tank water currently?

7. What make/model filter are you using?
UGF + Aquatech Penguin 150 clone (no biowheel)

8. Are you using a CO2 unit?

9. Does your aquarium receive natural sunlight at any given part of the day?
None at all

10. When did you perform your last water exchange, and how much water was changed?
Six days ago, the fish were moved to a new home so only about 30% of the old tank water was retained, making it about a 70% change

11. How often do you perform water changes?
Normally, about 25-30% weekly

12. How often and what foods do you feed your fish?
Twice daily, flakes, shrimp pellets, algae wafers, live blackworms, frozen bloodworms, tubifex and brine shrimp. Occasional veggies

13. What type of lighting are you using and how long is it kept on?
Standard Flourescents, about 12 hours a day

14. What specific concerns bring you here at this time?
The female kribensis has pop-eye in her left eye only. This wasn't present earlier this evening

15. What are your water parameters? Test your pH, ammonia, nitrite and nitrate.
pH 6.8, ammonia 0, nitrite 0, nitrate 20ppm

16. What test kit are you using and is it liquid or test strips?
API Master Liquid Test Kit

17. When was the last time you bought a fish and how did they behave while in the pet store tank?
Last fish added were the kribensis, added late December. They were typical skittish juvenile kribensis.

From what I've read, pop-eye in a single eye on a single fish is a good sign of an injury. The fish are due for a water change tomorrow - should I go heavier than I normally would and step up the water changes? From what I've read, it's likely that it was an injury that's now infected and antibiotics are par for the course. I don't have another tank I feel comfortable putting her in at the moment except possibly the 5g guppy tank, but I don't know if I should separate her from her fry in order to medicate. What should I do? I don't want to risk destroying my biological filter by using antibiotics in the tank she's currently in, and I'm not sure I should medicate with the fry as young as they are.

Lupin 05-28-2008 02:28 AM

Just do plenty of water changes until the injury heals.:) It shouldn't hurt to do an even larger water change as long as you hadn't been slacking over the water changes in the past few weeks which could cause tremendous shock to the fish.;)

okiemavis 05-28-2008 06:46 AM

It certainly wouldn't hurt to QT the krib if you can, as she'll have a place to heal without anyone picking on her. Definitely watch for any other signs of infection and treat if you notice any. Hopefully it will heal right up though!

iamntbatman 05-28-2008 01:06 PM

Oh trust me...she absolutely has no one picking on her now. I've already done a 50% change on the tank this morning. If I had to bet money, I'd guess that she injured herself during one of her more enthusiastic efforts to keep one of my not-too-bright cories away from her fry. I do have a resin castle, resin log and some local rocks in the tank that she easily could have bumped into or scraped her eye against during some cory pursuit. I'm reluctant to QT her because my empty tank is cycling at the moment and I'm not going to put her in a tank full of dwarf puffers and tiger barbs. The only other option would be my guppy tank, but it still seems cruel to separate her from the fry and I don't want to cause problems between her and the male when I try to reintroduce her later.

The "normally" in my water change means I do the 25-30% every week except for last week during the move, where they got a big 70% change. I think I'm going to follow Lupin's advice. I did a 50% change today, so I'm going to do probably a 20% change every other day until she's looking better. More water changes couldn't hurt either, since the fry are starting to get some size on them.

iamntbatman 06-18-2008 09:30 PM

I thought it might be helpful to post an update on the situation. I doubled my water change schedule (which was kind of needed anyway as there are lots of growing fry in the tank) and the fish is completely healed. No medications were used.

okiemavis 06-19-2008 06:50 AM

Awesome. Glad to hear improving your water quality was all it took :D

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