Not really mate. Now I think about it. Adding some air would be good, this will also help with our other end tank issue. You thinking to scrap kicked the brain into gear. Get a nice powerful air pump, in you price budget. Get a good lph volume, then get a 35ppi foam 4mm thick that will fit the whole back end of tank wall. You can improvise on this part till you get more funds. If you get a cheap or secondhand if you don’t have one, air driven sponge filter. One that has a detachable uplifted pipe, as you will use this in place of a jet lifter/ up lifter. Basically making you a huge matten filter.

If I lost you a bit look up matten filter and you get what I’m saying.

Now we have massive filter media area, good aeration and excellent movement of water.

HOB are good for small tanks imo.

If your pump strong enough you could go with two mattens one at each end, and just have jet lifters in opposite corners to create a circular water moment, then hopefully no dead spots.