OK I HAVE HAD MY 150 GAL TANK RUNNING FOR ABOUT 1 YEAR. STOCK WAS S.A CICHLIDS, BUT RECENT CHANGE TO ALL JAGS 6 1-2" GUYS (TRYING TO GET A BREEDING PAIR I KNOW CAN ONLY KEEP 2 OF THEM IN THE END) WITH A PLECO. SO I RECENTLY CHANGED MY FILTER CARBON, AMMO CHIP, AND PADS. I THOUGHT THERE WOULD BE ENOUGH BIO BUILD UP IN SUBSTRATE TO OFF SET A MINI CYCLE. I WAS WRONG, AND IT'S 4 DAYS NOW VERY COUDY WATER. THE FISH SEEM TO BE FINE, BUT IS THERE ANYTHING I CAN DO TO SPEED THIS PROCESS UP? EX. WATER CHANGE OR SOMETHING? OR DO I JUST WAIT IT OUT?