I have a 20 gal tank and have acquired a few new big poopers. It it too much to do a 25% PWC on Sunday and a 25% PWC on Wednesday with gravel vac? Will that change the parameters too much? Should it be a 50% once a week? I got so much waste out of my tank yesterday and the new fish had only been in there for 5 or 6 days. I see quite a bit of poop on the gravel since yesterday when I did their fasting. I would like to add more fish.
Tank:
20G
2 male sunrise guppies
2 female sunrise guppies
5 cories
1 apple snail
Tank:
20G
2 male sunrise guppies
2 female sunrise guppies
5 cories
1 apple snail