[Miss Tropical]

Hi there I have a sailfin molly that is rapidly losing weight and mobility. I have had the fish for almost two weeks nou and it started two days ago that he started to act funny. Darting to the one side of the tank to the other and now he's just, how can I say it, it looks like he's just hanging in the water. I had a platy that died last night but of different causes. I don't want to loose another fishy Please help!!!
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[fish monger]

Do a 50% water change as soon as you can. Then give us some more info. Your water parameters, how long the tank has been set up, when and how fish were added would be helpful. Is it correct that you aren't using a filter ?

 

[Miss Tropical]

I have 8 fry in my tank they are about 4 days old i do not what species except for it is from a live bearer. I have two mollies in my tank. One of the two platties I had died yesterday. Two jouvenal bala sharks. Two cory catfish. Two small bristlenose plecoes, one big common pleco and one small. O yeah and ene guppy. I added the sailfin molly that is nou sick and the platty that died about two weeks ago to the tank. The usual way about 10 minutes still in the bag the then a bit of my tanks water and wait about twenty mins and then more water from my tank to the bag, wait again a few minutes then let them swim out. I also bought two guppies with the mplly and platy one died the next day and the other one is still alive. I use a normal sponge filter. I have one live plant in the tank and one plastic. The tank has been setup for about three months. I cleand it thouroghly after a discus my dad bought died in it and made all the fish I had very sick. A third of my older fish had died. But the tank healed after that that's why I decided too get the fish that didnot have partners any more partners o yeah, I also have two gouramis. The tank is I think 40 liters it could be more. It is a very old tank it stood empty for years. I do not know how to work out hou big it is. I also do not have a testing kit I did not realize it was neccesary until someone on this site suggested I get one.
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[ZivaD]

I have 8 fry in my tank they are about 4 days old i do not what species except for it is from a live bearer. I have two mollies in my tank. One of the two platties I had died yesterday. Two jouvenal bala sharks. Two cory catfish. Two small bristlenose plecoes, one big common pleco and one small. O yeah and ene guppy. I added the sailfin molly that is nou sick and the platty that died about two weeks ago to the tank. The usual way about 10 minutes still in the bag the then a bit of my tanks water and wait about twenty mins and then more water from my tank to the bag, wait again a few minutes then let them swim out. I also bought two guppies with the mplly and platy one died the next day and the other one is still alive. I use a normal sponge filter. I have one live plant in the tank and one plastic. The tank has been setup for about three months. I cleand it thouroghly after a discus my dad bought died in it and made all the fish I had very sick. A third of my older fish had died. But the tank healed after that that's why I decided too get the fish that didnot have partners any more partners o yeah, I also have two gouramis. The tank is I think 40 liters it could be more. It is a very old tank it stood empty for years. I do not know how to work out hou big it is. I also do not have a testing kit I did not realize it was neccesary until someone on this site suggested I get one.
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Is it a standard four sided (square or rectangular) tank? Take measurements of it's height, width and length - post those here and we can help you calculate the volume. The volume is going to be key because, as I mentioned in your other thread, a tank the size you are estimating is entirely (dangerously) too small for the bio-load of fish you are keeping in it. The size of tank/bioload and the length of time the tank has been up point me towards the likely cause being toxicity issues caused by poor water conditions.

 

[Miss Tropical]

Height is 31 cm length is 45cm and the width is 30 cm it is rectangular tank
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[Miss Tropical]

I also just did a 50% water change
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[Miss Tropical]

I just saw now that the molly doesn't use his dorsal anal or tail fins.
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[beaslbob]

I think that's a 10g tank and you are pretty maxed out unless it it planted.

my .02

 

[ZivaD]

I think that's a 10g tank and you are pretty maxed out unless it it planted.

my .02

Even planted the two common plecos - especially since one is listed as "big" - and the balas are decidedly unsuited for this tank. THere are other tweaks that need to be made to the population as well, but those are the two that really jump out at me as a major concern

 

[Miss Tropical]

My molly did die. The bala sharks is still small I am going to get a bigger tank one of these days. Then I want to use the 10g tank only for breeding. I can always put my balas in my mothers 110 liter tank but I realy don't want to move my plecoes and bottom feeders they mostly keep my tank clean. But I don't want my fish to keep dying either.
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