Command line used:

MiniZ-v1.8y3\miniZ.exe --par=Ethash --url ###########@eu.prohashing.com:3358 --pass a=Ethash-LowMemory,L=1.66 --jobtimeout=900 --retries=99 --retrydelay=1 --stat-int 10 --latency --all-shares --extra --tempunits C --show-pers --fee-time=60 --telemetry 4005 --cuda-devices 1

************ miniZ v1.8y3 ************
miniZ<ethash>[99:1:00.0:1681]: Selecting GPU#1[0] NVIDIA GeForce GTX 750 Ti
Driver:         466.77
Algo:           EQ[ethash] [smart-pers]
Pool#0:         user[###############]
                server[eu.prohashing.com] port[3358] ssl[no] pers[ethash]
Telemetry:      [http://localhost:4005]
Temp. limit:    [90 C]
[INFO   ] Mining fee set to 0.75%
[INFO   ] Target set to 00000000FFFE0000 (2147.52M)
[INFO   ] GPU[1]: Generating DAG #169 [2375+37=2413MB]
[WARNING] GPU[01] Memory capped at 1640MB


Parameter --pass [...],L=1.66 tells the pool to mine a coin with a DAG < 1.66GB.

This does not work work with miniZ, other miners, e.g. GMiner work fine.