when i had the 10g set up, I was doing weekly water changes of between 25-30% and if it needed a change during the week i did that. i always made sure my water perameters were perfect. since upgrading to the 29g andnot having any gravel, the only problem i'd had it the algae. i always scrubbed down the inside of the tank with a tank cleaning sponge and I vaccuumed through every little bit of gravel there was when i used it.
