Molly fish problem

Hi Everyone, Im fairly new to the hobby and so far really enjoying it. I have a few tropical fish in my tank including two molly's. One White and a Dalmatian Molly. The Dalmatian Molly has all of a sudden starting spending the majority of the day at the bottom of the tank. I have checked the water and it is all fine, He doesn't have any obvious signs of sickness although he has gone almost all black. He has a few tiny white spots on his body and fins but not many. It hard to distinguish if this is his normal spots or if its something else like Ich disease. I know hes not well but i dont know what to do to help him. Any advice would be greatly appreciated.

Thank You

Can you test water for ammonia, Nitrite & Nitrate?

Can you give some tank info - size, tank mates, when it was set up & when fish added.

Can you post a pic of your Molly?

AilyNC said:

Can you test water for ammonia, Nitrite & Nitrate?

Can you give some tank info - size, tank mates, when it was set up & when fish added.

Can you post a pic of your Molly?

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Its a 60 litre tank, i can test for nitrate and nitrite but not sure my test kit tests for ammonia.

I have 2 angel fish, 2 mollys, 2 golden barbs and 6 cardinal tetras. i have attached pics.

I'd recommend getting an Ammonia test. The API Master Test Kit is a great liquid test set that lasts 800 tests.

Is your tank new? What temp is the water?

@Ch4rlie @Naughts is the tank too small for angel fish?

AilyNC said:

I'd recommend getting an Ammonia test. The API Master Test Kit is a great liquid test set that lasts 800 tests.

@Ch4rlie @Naughts is the tank too small for angel fish?

Click to expand...

I agree about the API test kit, good value.

Angelfish need a tank height of at least 55cm due to their size fully grown as well as their long trailing fins tbh.


Seriously fish says a minimum tank size of 100 x 40 x 50 should be considered, this is about 200 litres / 53 us gals tank.

AilyNC said:

I'd recommend getting an Ammonia test. The API Master Test Kit is a great liquid test set that lasts 800 tests.

Is your tank new? What temp is the water?

@Ch4rlie @Naughts is the tank too small for angel fish?

Click to expand...

Yes, angels get large and need a tank in excess of 200 litres. A breeding pair will dominate the tank, I had a pair that killed off all the other fish. Angels prefer softer water. Mollies also need a much bigger tank and need very hard water.

OP can you tell us the test results that you have in numbers?

Naughts said:

Yes, angels get large and need a tank in excess of 200 litres. A breeding pair will dominate the tank, I had a pair that killed off all the other fish. Angels prefer softer water. Mollies also need a much bigger tank and need very hard water.

OP can you tell us the test results that you have in numbers?

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Hi

I got the angels from Pets at home, I gave them my tank parameters and they said it was fine. They were classed as mini angel fish if that makes a difference.

My NO3 IS 10
no2 is 1
GH is 8d
KH is 6d
PH is 7.2
CL2 is 0

need a better picture of the fish.

the GH is too low for mollies but is not the cause.
it could be white spot but it's too hard to tell from the picture.
the fish has clamped fins.

do a 75% water change and gravel clean the substrate.
make sure any new water is free of chlorine/ chloramine before it's added to the tank.

add 2 heaped tablespoons of rock salt for every 20 litres (5 gallons) of tank water. Keep the salt in there for 2 weeks and see how it looks after that.

Colin_T said:

need a better picture of the fish.

the GH is too low for mollies but is not the cause.
it could be white spot but it's too hard to tell from the picture.
the fish has clamped fins.

do a 75% water change and gravel clean the substrate.
make sure any new water is free of chlorine/ chloramine before it's added to the tank.

add 2 heaped tablespoons of rock salt for every 20 litres (5 gallons) of tank water. Keep the salt in there for 2 weeks and see how it looks after that.

Click to expand...

Will the other fish be ok with the rock salt?

he’s back at the top of the tank now so I took these pictures

Unfortunately Pets@Home other fish shops give poor advice. The best place to check fish requirements is https://www.seriouslyfish.com.
I assume the "mini" angels refers to the fact that they are very small (babies) when they sell them. They are not a different species.
Keep an eye on the nitrite (NO2). Any time it is above 0, do a big (50-75%) water change. The salt will help here so maintain the salt levels for 2 weeks.