75 gallon Coldwater tank stocking suggestions

Dillan Murphy

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Aquarium Details  
Gender
Male
Occupation
Imt(Industrial Maintenance Technician)
List any water conditioners and test kits used:
Api master test kit, ammonia remover, algaefix,tap water dechlorinator, accu-clear
Experience
5 to 10 years
Do you know of and understand the Aquarium Nitrogen Cycle?
Yes
Aquarium Size
60 gallon
Aquarium Type
Freshwater Fish Only
Fish, Plants, Inverts, etc.
Panda cory catfish-4
Platys-5
Rainbow fish-6
mollies-9
albino bristlenose pleco-1
Koi angelfish-1
Red tailed shark-1
Aquarium Start Date
7-3-20
Ammonia
0ppm
Nitrite
0ppm
Nitrate
5ppm-10ppm
Lighting
Led
Skimmer
No
Aquarium Filter Type
mechanical
Live Rock Amount
None
Aquarium #2 Size
10 gallon
Tank #2 Type
Freshwater Fish Only
Tank #2 Fish, Plants, Inverts, etc.
betta
Tank #2 Start Date
8/9/20
I'm planning a 75 gallon coldwater tank. I will be having telescope goldfish and hillstream loaches in this tank. How many of each fish can I have, also do I even need a heater? My other tank ranges from 68 in the winter and 73 in the summer without a heater.
 
Solution
Hillstream loaches prefer clean, well oxygenated and fast flowing water. I can't see the telescopes coping with a strong current in the aquarium very well. It may be possible to keep them together, but probably not optimal for either species.

mimo91088

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Massachusetts
Aquarium Details  
Gender
Male
Nickname
Mike
Experience
More than 10 years
Do you know of and understand the Aquarium Nitrogen Cycle?
Yes
Could probably swing 5 or 6 of them. Maybe even up to 7 depending how much work you wanna do. Just keep in mind goldies are dirty fish. The high end of stocking means changing a lot of water. A good basic rule of thumb for fancies is 20-30 gallons for the first, and add 10 gallon for each additional.
 
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Dillan Murphy

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Member
Messages
1,104
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134
Aquarium Details  
Gender
Male
Occupation
Imt(Industrial Maintenance Technician)
List any water conditioners and test kits used:
Api master test kit, ammonia remover, algaefix,tap water dechlorinator, accu-clear
Experience
5 to 10 years
Do you know of and understand the Aquarium Nitrogen Cycle?
Yes
Aquarium Size
60 gallon
Aquarium Type
Freshwater Fish Only
Fish, Plants, Inverts, etc.
Panda cory catfish-4
Platys-5
Rainbow fish-6
mollies-9
albino bristlenose pleco-1
Koi angelfish-1
Red tailed shark-1
Aquarium Start Date
7-3-20
Ammonia
0ppm
Nitrite
0ppm
Nitrate
5ppm-10ppm
Lighting
Led
Skimmer
No
Aquarium Filter Type
mechanical
Live Rock Amount
None
Aquarium #2 Size
10 gallon
Tank #2 Type
Freshwater Fish Only
Tank #2 Fish, Plants, Inverts, etc.
betta
Tank #2 Start Date
8/9/20
Could probably swing 5 or 6 of them. Maybe even up to 7 depending how much work you wanna do. Just keep in mind goldies are dirty fish. The high end of stocking means changing a lot of water. A good basic rule of thumb for fancies is 20-30 gallons for the first, and add 10 gallon for each additional.
I'll probably do 6 of them. I'm planning on getting a fx4 filter will that be too much for the goldfish?
 

TheeLadyG

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789
Location
Chicago
Aquarium Details  
Nickname
G
Occupation
Artist
Quarantine?
yes
List any water conditioners and test kits used:
API Master Test Kit, Seachem Prime
Experience
3 years
Do you know of and understand the Aquarium Nitrogen Cycle?
Yes
Aquarium Size
75 US Gallons
Aquarium Type
Freshwater Fish Only
Fish, Plants, Inverts, etc.
1 Calico Fantail goldfish, 1 orange demekin pompon Fantail goldfish, 1 blackmoor goldfish, algae wall
Aquarium Start Date
Dec 01, 2018
Ammonia
0
Nitrite
0
Nitrate
usu 20ish
Temperature
73-79
pH
8.0
Lighting
LED hood light
Skimmer
No
Aquarium Filter Type
Cascade 1000 Canister Filter (matrix balls, biohome), sponge filter
Aquarium #2 Size
5 Gallon Marineland Portrait
Tank #2 Type
Freshwater Fish Only
Tank #2 Fish, Plants, Inverts, etc.
So far, only Malaysian Trumpet Snails, Marimo Balls, and Java Fern
Tank #2 Start Date
Nov 20, 2019
Tank #2 Temperature
79
Tank #2 Lighting
LED
Tank #2 Filter Type
Built-in filter for Marineland 5G portrait tank
I have a 75G with three fancy goldfish in it. It is very beautiful and gives them a lot of swimming space. One of my telescope eye fish has grown to be over 7" in length with her full tail.

If you want to make a better environment for your fish, I would not go with more than four, honestly. It makes caring for the tank 100x easier, they are able to swim freely with each other, and you can pay closer attention to individuals and their wellbeing. I added my fish individually as well. I may get a 4th fish sometime in the coming years but that remains to be seen. The three fish in the tank are stunning and are easily seen from the street through my window.
 

Noroomforshoe

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Location
PA
Aquarium Details  
Gender
Female
Nickname
Noreen
List any water conditioners and test kits used:
Seachums Prime Seachums Paragaurd. Recently switched from Api to Salifert test kits.
Experience
More than 10 years
Do you know of and understand the Aquarium Nitrogen Cycle?
Yes
Aquarium Size
55 gallons
Aquarium Type
Freshwater Fish Only
Fish, Plants, Inverts, etc.
3, yoyo and 3 polka dot loaches, 5 dalmation mollies,1 leopard bristle nose pleco, 9 Austrailian rainbow fish, 2 female electric blue acara,
Aquarium Start Date
2005
Ammonia
zero
Nitrite
zero
Nitrate
30 ppm
Temperature
78
pH
7.6
Lighting
Beamswork L E D strip
Aquarium Filter Type
2 marineland 350s
you can probably do 4-5 telescope eye goldfish. I really do not know if hill streams are compatible with goldfish. You would ideally keep a school of no less than 6 loaches. But I definitely don't know if they are a good match with goldfish. The temperature is fine for both species and you should not need a heat if you are sure the temp doesn't go below 68.
 

Wouldratherwatchaquarium

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461
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367
Location
England
Aquarium Details  
Gender
Male
Occupation
Mobile plant operator
List any water conditioners and test kits used:
Seachem prime, api master
Experience
1 year
Do you know of and understand the Aquarium Nitrogen Cycle?
Yes
Aquarium Size
44g, 200 litre
Aquarium Type
Freshwater Fish Only
Fish, Plants, Inverts, etc.
4 angelfish
7 peppered corys
1 sterbai Cory
1 BN pleco

Java fern
Amazon sword
Brazillian pond weed
Ammonia
0
Nitrite
0
Nitrate
15ppm
Temperature
27
pH
8
Lighting
Juwel built in
Aquarium Filter Type
Cannister and jumbo sponge
Aquarium #2 Size
16g
Tank #2 Type
Freshwater Fish Only
Tank #2 Fish, Plants, Inverts, etc.
Axolotl wild type
Tank #2 Ammonia
0
Tank #2 Nitrite
0
Tank #2 Nitrate
20ppm
Tank #2 Temperature
Unheated
Tank #2 pH
8
Tank #2 Lighting
Adjustable led
Tank #2 Filter Type
Internal hob, DIY hob/sponge
Aquarium #3 Size
24 gallon
Tank #3 Type
Freshwater Fish Only
Tank #3 Fish, Plants, Inverts, etc.
1 kribensis
9 Black Ruby barbs
1 orange BN pleco

Java fern
Amazon sword
Brazillian pond weed
Tank #3 Ammonia
0
Tank #3 Nitrite
0
Tank #3 Nitrate
>5
Tank #3 Temperature
24
Tank #3 pH
8.0
Tank #3 Lighting
Interpet led, ciano led
Tank #3 Filter Type
Internal hob, DIY hob sponge
Hillstream loaches prefer clean, well oxygenated and fast flowing water. I can't see the telescopes coping with a strong current in the aquarium very well. It may be possible to keep them together, but probably not optimal for either species.
 
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