how big of a tank would i need

ok since i will be setting up a 75 gallon tank with a breeding pair of GT's and they will also be my source of money to upgrade and i have the 75 gallon for GT's but its in Washington with my dad (and i will be moving to Washington soon and latest we will be up there is october) and i would like to know how much i need to save up for to fit these fish and my current stock and will these fish be compatible together
also incase i don't get the upgrade how big of a tank will i need just for my current stock

current stock:
1 Sun Catfish
1 Sorubim Elongatus
1 Senegal Bichir
1 Palmas Palmas Bichir
1 Buettikoferi Bichir (Gold Dust Bichir)

want i want to add:
5 Clown Loaches
3 Tiger Loaches
3 Schilbe intermedius
2 Pimelodus Blochii
1 Polypterus Delhezi
1 Polypterus Retropinnis

oh well they are in a 105 gallon ATM but the 75 gallon is at my dad house and the 75 gallon is for the pair GT's i was going to add the fish i want after i get up there after i got up there
also since i forgot the other S.elongatus and may get 5 Schilbe intermedius instead so then 250 should be good? sorry i didn't include them i my first post
but is 250 for what i want and my current stock combined?
and will these fish get along together?
thank you for the info
and sorry about all the other questions

and i may add a Mystus vittatus or whatever this guy is

because really like him
and i don't mean this to be a bump or for this thread to get off topic
and no i'm not any thing else any more this will be the last fish i add before i get more tanks

Catfish Pownage 63 said:

and i may add a Mystus vittatus or whatever this guy is
View attachment 930003
because really like him
and i don't mean this to be a bump or for this thread to get off topic
and no i'm not any thing else any more this will be the last fish i add before i get more tanks

Click to expand...

and three datnoids (2 AT's and 1 NTT)
also don't mean for this to be a bump but i will post no more possible additions to list just waiting to see more than one person's opinion for the tank size for these fish

would a 250 work for these fish and will they be compatible with eachother?

current stock:
1 Sun Catfish
1 Sorubim Elongatus
1 Senegal Bichir
1 Palmas Palmas Bichir
1 Buettikoferi Bichir (Gold Dust Bichir)

want i want to add:
5 Clown Loaches
3 Tiger Loaches
3 Schilbe intermedius
2 Pimelodus Blochii
1 Sorubim Elongatus (yes another one)
1 Polypterus Delhezi
1 Polypterus Retropinnis
2 Silver Datnoids
1 Thin-Bar Datnoid
Mystus Vittatus or whatever this guy is

bump
anyone?

koi9 said:

I think a 250 might work. You're gonna have a ton of action at the bottom. And you might get a couple fights here and there.

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i already have a couple of fights but its kinda bad because my smaller suncat has a bunch of scraches thats why he is being moved to a 75 with some pictus cats and Raphaels aswell as a saxatilis pike also the S.intemedius are middle swimming catfish