For a 10 gallon tank, you definitely need to carry out water changes once a week and change around 25% to 30% of the water. What is csm+b ?
If it is fertilizer, I would advise you to avoid them since you stated that you have barely any plants. Make sure you have a good sponge or power filter (with a sponge stuck on the intake) to circulate the water. Do not leave the algae wafer too long in the tank. Any uneaten food after 1 to 2 hours should be taken out immediately and feed them once a day or every other day. |