is it safe to wash fish supplies in the dishwasher if i dont use soap? namely my 5gal acrylic tank.....it has nasty algae junk and i just wanna clean it up for a FW tank.
Not gonna do you much good...it will "cook" some of that algae to your stuff. But if you don't mind green. . .
Tony D. has the right idea. I used vinegar all the time to clean my algae encrusted tank stuff. Spray heavily w/vinegar, let sit for a little while, and gently wipe off the scum (don't damage that acrylic!)...keep doing it until the stuff comes clean. If it were glass, you could just scrape it...
I discovered the vinegar solution because of my dog....My dog leaves nose prints on my glass door all the time. It builds up like a nasty soap scum on a glass shower door....no household cleaner made it easy to remove....until I just used straight vinegar. No more nose prints...