#tropical fish

Hi guys so I’m relatively new to the hobby. I’ve a fully planted tank but they just do no seem to be growing. I have a gravel substrate and and currently using root tabs. I’m wondering if a liquid fertiliser might boost things. Wondering is this would be safe for my tropical tank for my...

I cleaned my tank yesterday and did a 25% water change, I noticed last night my Cory had a red blotch on its side and when goggling it suggested to do a salt bath for 15mins and return the Cory back to the tank , done this and this morning the red blotch has gone however still one very unhappy...