Help with combining my 2 fish tanks

Jbrofish8

So as of right now I have 2 fish tanks. They are both 29g but different dimensions. The reason I have 2 small tanks and not 1 large tank right now is because I am renting a tiny house and there is barely any room!

but.. I just bought my first home and will be moving in the first part of January. The first thing I'd like to do after we are settled in is start the hunt for an aquarium big enough to combine my 2 tanks.

Here are my 2 tanks as of now:
My first aquarium
New 29g planted log

I dont think I would have any issues with the stock as of now. I have across both the tanks:

12 Glowlight Tetra
11 rummynose tetra
9 Cochu tetra
5 Apistogramma cacatuoides (Juveniles)
6 Oto Catfish (3 per tank)
2 mystery snails
3 panda corys
3 bronze corys
3 Salt and Pepper Cory
3 Three Line Cory

What I am thinking is that I may return the Cochu's. It will be hard because I have had them the longest, but I know they are rowdy fish and that might not work with the rummynose or the cichlids. Any thoughts?

I want to get AT LEAST a 55 gallon tank. With a 55g, am I fully stocked or will I be able to get a few new additions?

The pH of my water now is around 7 and I have soft water. My other concern is the change in the water. I am only moving about 15 minutes from where I am now, but it is a different city. I couldn't find anything online about water hardness. Is it possible the water is the same?

Quantum

Congratulations on the new home.

One thing I noticed was that most of your fish, with the exception of the cochus, like to stay in the lower part of the aquarium (I've never had rummynoses, but I believe this is the case with them as well). So maybe a tank with a larger footprint? Maybe a 75 (48x18x21). I always thought the standard 55 was a bit narrow front to back for its size.

Jbrofish8

you are right! Im mostly going to be craigslist shopping so hopefully I can find a good deal.

Quantum

I think you are right about the cochus. At the very least, putting them in the new tank will probably limit future additons.

Couple of links:

Blue tetra is not Boehlkea fredcochui, says scientist | News | Practical Fishkeeping

Blue Tetra (Knodus borki) - Seriously Fish

Jbrofish8

Yeah Just watching them in the tank they are in now I sometimes regret getting them. They are fun to watch at times but way too boisterous.

Stoke88

Congrats on the house. I'm actually in the same situation with a new house but looking into something between 125-180 gallon. If I were you however, I'd get something like a 75 gallon. That way you have plenty of room to add a few new fish as well as re-aquascape a bit.

Jbrofish8

Id love to have a 75g... its just going to come down to if I can find one for a decent price. Im not ready to shell out hundreds of dollars on a new tank after just moving. >.< I guess I'll try to be patient and hold out for a really nice craigslist find.