Tropical Fish Keeping - Aquarium fish care and resources

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-   -   please tell me what more can i do so that my black molly fries grow better? (http://www.tropicalfishkeeping.com/livebearers/please-tell-me-what-more-can-25080/)

sam augustin 06-20-2009 03:58 AM

please tell me what more can i do so that my black molly fries grow better?
 
my baby mollies are 4 to 6 months old and they have not even become 1 inch so i would like to know what am i missing or what am i doing wrong. please read this data and tell me what is wrong or missing

aquarium size- 60 litres( 15 gallon)
temperature- 30 to 32 c
number of fishes- 10(black molly fries)
feeding times- 3 times each day
food which i feed them- blood worms and flakes
water change- once in a month

i have not got any filter in my aquarium and i have not kept any live plants,sand or stones. there are no other fishes with my black mollies in the aquarium.

if you think i am doing anything wrong anything which i can do more than please tell so that my fishes grow faster.thank you

Oldman47 06-20-2009 01:17 PM

Hi Sam. Welcome to this forum too.
I am afraid the answer will not be changing much except it will be my words rather than the people who answered you in that other forum.

You need to get a filter to control the organic nitrogen compounds that are likely to build up in your water such as ammonia.
Your tank is too hot and should only go as high as about 26C or even less for mollies. I keep mine at about 24C for mollies. Turn down the heater control a few degrees.
Feeding 3 times a day is plenty if the fish are getting their fill each time. If you had clean water for the fry, they would be growing much better. If you really want the fry to grow, start doing large and frequent water changes using dechlorinated water. Dechlorinators are cheap and readily available so don't try to rely on just letting water sit out over night. A few times each week a change of 30% or more would help the growth. Another thing that will help those fish is giving them plenty of swimming room. You have a very small tank for growing mollies. I am using a 55 gallon, about 200 litres, tank to get mine to grow a bit faster. That is a 4 foot long tank that gives the mollies room to stretch out and exercise a bit.
Frozen or live foods can make a big difference in how fast fry grow if you are not feeding adequate quality foods. Some available live foods are microworms and baby brine shrimp. Both take your active involvement to culture them. I also make sure to feed my mollies some vegetable matter as part of their diet such as algae wafers or spirulina flakes.

sam augustin 06-21-2009 12:03 AM

Quote:

Originally Posted by ghreed (Post 206908)
Hi Sam. Welcome to this forum too.
I am afraid the answer will not be changing much except it will be my words rather than the people who answered you in that other forum.

You need to get a filter to control the organic nitrogen compounds that are likely to build up in your water such as ammonia.
Your tank is too hot and should only go as high as about 26C or even less for mollies. I keep mine at about 24C for mollies. Turn down the heater control a few degrees.
Feeding 3 times a day is plenty if the fish are getting their fill each time. If you had clean water for the fry, they would be growing much better. If you really want the fry to grow, start doing large and frequent water changes using dechlorinated water. Dechlorinators are cheap and readily available so don't try to rely on just letting water sit out over night. A few times each week a change of 30% or more would help the growth. Another thing that will help those fish is giving them plenty of swimming room. You have a very small tank for growing mollies. I am using a 55 gallon, about 200 litres, tank to get mine to grow a bit faster. That is a 4 foot long tank that gives the mollies room to stretch out and exercise a bit.
Frozen or live foods can make a big difference in how fast fry grow if you are not feeding adequate quality foods. Some available live foods are microworms and baby brine shrimp. Both take your active involvement to culture them. I also make sure to feed my mollies some vegetable matter as part of their diet such as algae wafers or spirulina flakes.

thank you so much for your advice and now i will just try to do the same thing what you told me to do. thank you.

Chicklet 06-28-2009 09:43 PM

I have black mollies. 9 to a 10 gallon tank, and they are growing like weeds,
So I doubt its the tank size.. I do not keep heaters in most of my tanks either, their temps are a pretty constant 80, So I doubt its the cause of being to warm....

The biggest growth you will get from young fry is daily water changes, That in itself is a big to do in growing for most any young fry,,, In the first 2 weeks or so of life is the most important growing time, After that alot goes to their sex...... I like over feeding mine during those crucial few weeks,,,, With water changes everyday you don't have to worry about fouling the water to much,,,,,, I have also found out that LIVE food is a super food for Mollies,... and they need algae or vegetable matter.
Alot of Mollies around where I live don't survive long for some reason, Live food seems to breath new life to these Mollies and they thrive...


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