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Changing from gold fish to tropical fish

This is a discussion on Changing from gold fish to tropical fish within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> 4 Pearl gouramis (Trichopodus leerii) would look grate, the males get bright orange throats wen mature. They get 10cm. I think go to the ...

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Changing from gold fish to tropical fish
Old 03-04-2013, 03:27 PM   #11
 
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4 Pearl gouramis (Trichopodus leerii) would look grate, the males get bright orange throats wen mature. They get 10cm.



I think go to the Petshop and see what they have and let us know of the ones you like and
we will tel you what you need to know.




Nicolaas.

Last edited by nicolaas; 03-04-2013 at 03:30 PM..
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Old 03-04-2013, 03:42 PM   #12
JDM
 
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Yah, don't just buy what gets pushed at you... check it out first and only get one type of fish at a time. Many come home with a boatload of different ones with no idea what works and fits until afterwards.

40 fish for a 120 litre (about 30gallon) tank is a little high. It can be handled with small fish but if the fish are larger, it will be overloaded. At the very least add one species and quantity at a time and monitor the water for a while (couple weeks) between additions.

Jeff.
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Old 03-04-2013, 05:16 PM   #13
 
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Old 03-04-2013, 05:18 PM   #14
 
OK thanks for the help, I hope to update when the tank is running again.
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Old 03-05-2013, 09:24 AM   #15
 
Cleaned and Restarting 120 ltr tank

After giving the inside of the tank a good clean, I have added approximately 3 cm layer of Dennerle Deponitmix Professional nutrient Substrate towards the rear of the tank for the plants, I have also returned some of the old gravel near the front where there are no plants.
I then added 12 Kilo of fine 1.5 mm crystal gravel covering the old gravel and substrate raising it up slightly to the rear of the tank. This has given me about 3 cm on top of the substrate.

I have added a piece of decorative plastic wood and a selection of new plants.

Hydrocotyle 2 types triparita and verticillata.
Ludwigia repens Rubin
Lilaeopsis mauritiana.
Plus another which I didn't get the name but its the long one that seems to grow well

I have also replaced the old 14 watt strip lamps with 2 new Fresh water / plant lamps.

I have kept the Eheim pro filter wet as someone mentioned that this would keep the good bacteria and I can add fish more quickly. I have also put some of the old gravel back to help the bacteria.

I know someone mention that I didn't need to clean the tank but I must say it looks much better now. I will leave it running for a few days and add some food and check the quality daily before I put the fish back in.
I guess I better get the apartment cleaned up now before the misses comes home.
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Old 03-05-2013, 10:03 AM   #16
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Quote:
Originally Posted by Dovie View Post
I guess I better get the apartment cleaned up now before the misses comes home.
Uh Oh. You absolutely can't forget that step.

If those are the total of the plants you will still need to rely on the bacterial nitrification with a full fish load. With just the neons that you have the ammonia production may be small enough that any spikes will just be bumps, or between your plants and still active filter and gravel, might not happen at all.

Based on what I have seen with fish additions in a newish tank... I'd consider this newish after the cleaning... leaving two weeks between fish additions would be suggested. Add your current neons now, bring the neon group up to the numbers you want to keep in two weeks, then add the next species at full numbers and repeat up to your full load.

Don't get sold fish that you don't plan on putting in at that time. That seems to be where a lot of people end up with mismatched fish, too many fish, too large fish etc. Spontaneous purchases.

I almost forgot, post some pics as you can, we all love to see pictures of tanks.

Jeff.
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Old 03-05-2013, 10:24 AM   #17
 
Thanks for you Help Jeff,

I have a 4 cm pleco and 4 small 2 cm Siamese algae fish as well the neon's should I add these to the tank now as well. I have also put some of my old plants back, cant remember the name but they are the tough ones with large leaves that the goldfish don't like.

I was wondering should I add the 20 ltrs of water that the fish are in now?

Don

Last edited by Dovie; 03-05-2013 at 10:38 AM..
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Old 03-05-2013, 11:12 AM   #18
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Is the Pleco a common pleco ? It will eventually outgrow your tank. We have one in our office tank that seriously needs to be re-homed, I never got involved with the maintaining of that tank.... until now.

I would think that putting everyone in the tank now would be best. For starters it saves you from having to monitor two tanks. Just watch the ammonia levels in the tank closely and change water and/or treat with Prime if it starts to get to the 0.5 ppm level.

The more plants the better.

Jeff.
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Old 03-05-2013, 12:00 PM   #19
 
I think it a common Pleco, but its got a huge dorsal fin!

I will probably take it back to the shop when it get too big. Its about a year old and was the smallest I could find when I got it about 1.5 cm, I just measured it and its about about 8-10 cm long and about 3 cm wide. Nearly time to go and its a bugger to catch.

Don
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Old 03-05-2013, 12:17 PM   #20
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Probably a sailfin pleco then, fully grown listed as 50cm.

That's big alright.

Our LFS takes them when they get big as they are popular in ponds where large fish are desirable.

Jeff.
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