Guppies dead & Mollies nervous - Tropical Fish Keeping - Aquarium fish care and resources
 
LinkBack Thread Tools
post #1 of 2 Old 06-02-2011, 08:27 AM Thread Starter
New Member
 
Guppies dead & Mollies nervous

Im new to this so bare with me!
We have a 7mth old 48ltr freshwater tropical tank - no live plants - have bog wood and rock - Current fish stock - 6 x-ray tetras & 2 mollies & 1 temperate shrimp

Temp is 27 oC and amonia is 0 only occasionally slightly raised to 0.25 Nitrite is 0 and trate is 40 (hope i got these the right way round!) PH is 7.5 ish
We do water changes weekly but recently a 6mth old guppy died it had had a curved spine for a while and then just died, we'd intorduced the shrimp about 2 - 3 wks before this guppy died. we did a 40 - 50% water change on the day it died, and put in ˝ a new filter pad. Then 2 days later bought 2 more guppies to keep the original mate company but then 4 days after the first death the 2nd 6mth old one died, then 1 of the 2 new ones seemed shy and not eating so we got some bacteria medicine (begins with an M) using this meant we did have to take out the carbon from the filter- however within 3 days that guppy had also died. We thought we were in the clear then 4 days later the 4th and last guppy also died. Throughout this we have done small water changes and always use tap safe and filter start.
We are gutted as we use the test tube tests and have never had high readings. The concern now is are we likely to loose more and we are totally unsure why this happened as no outward signs of ill health.

Old tetras are happy as usual now, but the mollies use to greet us every morning when its was feeding time - now they seem nervous and jumpy but all still feed.

Anyone have any idea's???

Last edited by greeners; 06-02-2011 at 08:33 AM.
greeners is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 06-02-2011, 12:31 PM
Member
 
Byron's Avatar
 
Welcome to Tropical Fish Keeping forum.

You have quite a few fish in a relatively small tank, 48 litres/12 gallons. The nitrate at 40ppm is indicative of this for one thing. I would not suggest going beyond the 6 tetra and 2 mollies and shrimp.

To the guppies, a deformed spine is often genetic and it happens. The guppy may have brought something in with them. I won't speculate on disease issues as i do not have the knowledge.

Live plants would help, even stem plants or floating plants. Nitrates at 40ppm is considered OK by some but not by me. I recommend keeping nitrate below 20ppm, and in a balanced tank this is easily done via live plants and/or partial water changes.

Make sure a couple of the foods you feed are plant or vegetable-based for the molly. This is good for other fish too, but molly need it.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Guppies or Mollies?! JD3P Livebearers 6 12-19-2010 04:38 PM
Mollies and guppies james7139 Livebearers 4 07-31-2010 12:51 PM
Guppies or Mollies to aid cycling? atomaino Beginner Saltwater Aquariums 3 10-04-2008 04:48 PM
Guppies vs. Mollies (Mollies 5pts, Guppies 0pts) :( homegirl2180 Livebearers 11 01-06-2008 04:55 PM
glancing (guppies and mollies) pinkguppy Tropical Fish Diseases 7 05-20-2007 10:34 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome