To many fish for my 37g?

Ever since I restocked my 37g a month and a half ago from what was in it to whats in it now. It looks fuller and the movement calms me down from a very stressful day at work(even though I work with fish daily there) and most of my fish came from there. I just caught up on my water changes since I just got another bucket, I skipped a whole month on both my tanks due to my old bucket being destoried. I took out a lot of waste. x.x

Here's the tank info for who don't know:
Aquaclear 50 (staying till I can get a 70 to replace it. its for my 20g.)
Marineland 100 Pengiun (this will be taken off and given to a co-worker for his tank)
LED Lighting 8-10 hours a day (No Algae issues ever!)
Test results, stay the same daily:
Ammonia: 0 PPM
Nitrite: 0 PPM
Nitrate: 5-10 PPM (sometimes goes up to 20 PPM)
PH: 7.6

Here's the stock:
2 Zebra angelfish
14 Harlequin Rasboras
1 Albino Cory, I know he needs friends
3 SA Bumblebee Catfish
5 Platies
1 Swordtail
1 random male betta
1 SAE/flying fox

This is a 3 yr old tank and still going strong, expect a mass die off where almost all my fish died, but rehomed some before they died to.

What the old stock was: (most of these died off, expext the bettas, rehomed them, they were getting nasty)
8 Female bettas
10 Rummynoses
6 Cories
3 SA Bumblebee Catfish

the stock from a year and up to the mass die off
Angelfish pair (used to be one female angel)
10 Black Neon Tetras
4 Cories
3 SA Bumblebee Catfish
5 Kuhli Loaches (the 2 remaining are in a 20)



But the new stock I have now seems to be pushing the limit or may be over but I know the full size of angels and the cats and rasboras are full grown. Tanks are always a work in progress if I say, mostly with planted tanks.

I know the full size of angels and I had a betta with my old breeding pair, no issues. As for the swordtail... I never had them grow over 3", but had mollies grow to 5-6" in an older tank. I might take the SAE into work once the sick tank at work doesn't have fish in it. My bumblebee cats stay on the small side, 2-3" max and 2 are past their life span(which is 4-5 yrs, they are 6). I lost a rasbora so Im down to 13 of them...

I'm getting either an Aquaclear 70 or 110 for the 37 in due time... the 50 is for the 20, but will stay on the 37 to cycle the 70 or 110. Which should I get?

My rasboras are full grown and used to be in my 20g, till I moved them to the 37g 2 months ago. I don't want to get rid of them either.. I could cut the school down and add a few more cories for the lone cory. Would that be a bit better?

Heres an updated picture. It's not cloudly anymore.. I kicked up some sand when I was moving stuff around to plant Large Swords.

I had a huge 9" tall female angel for 5 years, she was not aggressive to anything, never ate my black neons, never chased anything, nor go after bettas or baby angelfish. I know how angels are, as long the fish are to big to be eaten they are fine. The Harlequins have a bulky body and can't be eaten by full grown angel and the platies will be fine with adult angels. Normally if angels grow up with other fish, they don't harrass them or chase them.

I did move 2 platies to my 20g.


This was my old angel. I know how they are and their size. She could of eaten my neons and guppies, but she never did. She never touched fry either.