Val1311
New Member
Just checked parameters and for first time ammonia levels spiked at 1-3 even though I’ve been doing regular water changes. Nitrate, ph & nitrite fine. No probs before. 2 zebra snails sadly deceased. Can only assume substrate needs vacuuming? I’ve disposed of dead snails. Done another 30% water change. How do you vacuum sand substrate in a small 80 litre tank (approx 16”x20” base) that is quite heavily planted with rocks for hiding places? I cannot get the end of the vacuum in between the rocks and plants without disturbing them. There simply is no room! Is vacuuming necessary or are water changes enough? Help! Val