substrate change

I think my fish would be happier if his tank was decorated with algae instead of plastic, but I don't know if I can do it inmediately or have to wait for the tank to cycle :( I'm pretty new in taking care of plants and all the algae I've tried to inmerse in the tank died, so I'm thinking of...

My substrate was filled with GHA, so i took the superficial part out and washed it with hydrogen peroxide I know that kills good bacteria too, but nothing else was working Anyways, when i put it back into the tank, a bit of the algae that stayed got buried Is that a problem? Will it die and...

Hello! I just moved across the country, and brought my fish tanks over in two phases. Everything survived!!! My 2 clown fish, GSP, Golden Hammer, and small COC have been living in my QT for about 3-4 weeks. Now that I am about to bring up my DT and set everything back up for that, I am not sure...

I have a 6 month established reef tank with inverts/corals/fish. I started with some really fine substrate but am looking to change it (gradually) with something heavier as the flow from my return pump and powerhead tends to sift it around (on low settings, not pointed directly towards...