I knew a lady who had a trio of one male and two females in a 125, when she wanted to breed them she dumped one of those super market bags of ice in the tank, the next day they would breed. She only ran two sponge filters one in each corner she had a huge peice of coral that was as tall as the tank to keep the hardness in the water and barely an inch of sand at the bottom.
She contstantly had fry.
She contstantly had fry.