DO NOT DO DUCKWEED! not even once you will regret it. Frogbit would be the smallest I would suggest but it depends on the fish you keep. Most fish will eat true floaters like frogbit, water lettuce, red root floaters, etc. water hyancinthe is the only true floater i can think of that fish tend to leave alone. Now if you are looking for nutrient sponges hornwort and water wisteris are the 2 best free floating stem plants. Again your fish may snack on it. Almost any stem plant can free float though. I planned on reinforcing the sword roots with rock wool and weight them down. This will work with almost all diggers and movers. Just try to keep away from herbivorous fish and make sure the plant is appropriate sized for the fish.
With vals they are very sensitive to carbon supplements like excel or co2 boosters. They will die off and not bounce back. They also will only thrive when the waters gh is 6-10 or higher. You have to actually manually supplement gh booster like seachims equilibriums be cause it will strip it out of the water. You also cannot run carbon in the filter when it comes to vals on a long term basis.
Rootabs can change water chemistry if they dissolve too fast. Api's are terrible and can actually kill plants from root burn. Seachems tabs are the best commercial tab but there ae alot of diy solutions that perform much better. Hell even modeling clay from Georgia or Alabama can be used as tabs.
With vals they are very sensitive to carbon supplements like excel or co2 boosters. They will die off and not bounce back. They also will only thrive when the waters gh is 6-10 or higher. You have to actually manually supplement gh booster like seachims equilibriums be cause it will strip it out of the water. You also cannot run carbon in the filter when it comes to vals on a long term basis.
Rootabs can change water chemistry if they dissolve too fast. Api's are terrible and can actually kill plants from root burn. Seachems tabs are the best commercial tab but there ae alot of diy solutions that perform much better. Hell even modeling clay from Georgia or Alabama can be used as tabs.
