MattAquaBio
Aquarium Advice Freak
Firstly, i want to change substrate in my 55 gallon. I'm going to put pool filter sand in instead. Where can i get pfs? Also, when doing vac's, wouldnt it syphon the sand out as well as the waste? I'm working on some rockwork for the back of the tank right now. I'm using PVC pipes and making caves and a rock wall for back for them. So whats the best way to secure this to the back? i'm not worried about it floating lol.