I currently have pool filter sand in a 50 gallon community tank with lots of live plants and would like to “upgrade” to a more plant friendly substrate such as Aqua Soil. My current pH sits at about 7.2. I just set up a 15 gallon with Aqua Soil and see that it’s keeping the pH around 6.0-6.2. That is a drastic difference. I know how to do a substrate switch but I’m not sure how to go about re-acclimating my fish. Inhabitants are: 10 harlequin rasbora, 7 sterbaI corydora, 1 Siamese algae eater, 4 platy plus about 10 fry (all of the platy are going to a new home soon, preferably before the substrate switch), 2 Amano shrimp, 1 ghost shrimp and 1 mystery snail. I have an empty 26 gallon that I’m going to use for (very) temp housing while I switch out the substrate. I’m also upgrading to a Fluval 406 canister from a Marineland HOB.
The acclimation is what scares me. Is there a better substrate to use for this type of upgrade? Is there a good process to use if there isn’t? Please share your knowledge and experience! Picture of the current setup included.