I was combatting two issues over the past couple of years, watermeal and the lack of fish. I thought I had the watermeal under control (and I do now, see this post)

My tank is about 2/3rds an acre and i decided to try and start the chain back in March.

I purchased 4 lbs of fatheads, 4 lbs of shiners, 50 redear, 125 bluegill, 4 grass carp and 30 catfish.

I had watermeal for about a month, but its gone now. I can see no signs of fish. No minnows swimming, no nothing other than frogs and turtles. Nothing comes to fish feed either.

I tested the water before I did this back in March and here were the results:

PH: 7.5
Ammonia: between .25 and .50
Nitrate: 0
Phosphates: 1.0
I checked the DO as well but forgot to record it.. it seems like it was around 6.5/mg, but that was March. I can't aerate unfortunately.

The tank is about 2/3rds acre with an average depth of 4 ft i would suspect.

Is there anything I can do now, or do i need to wait till next year and give it ago again?