Occasionally i’d change 50% of the water once every 2 weeks and take out all the driftwoods and soak them in tap water, then vacuum the debris from the gravel. Is this okay?I agree you do have a lot of fish, I am doing a 50% water change again today, sometimes I do up to 75% with 48 fish in my 55 gallon tank I want to make sure the water is clean. I like your fogbite, I can not get that here so have salvinia instead. I went from gravel to sand.
The frogbits are much more healthier when i got them delivered to me months ago, now they have yellowish leaves, some are rotten, despite of their fast growth. My fishes like to nip at the roots, i think they eat them sometimes. What fishes do you have there?