well i came home this morning to find my rtgg gone from the tank( tank is in the back of house) and my cover was cracked, so i paniced and look around and i found my rtgg in the trench where the water pipes were going to be installed. Luckily it had been rainning hard so the trench was filled with water and now he's stuck in the 55gal hospital tank. the lesson of the day for me is to put some dam bricks on the cover.
