im getting allof these slug things crawling on my glass. they used to look like little bugs, but now they look like slugs.
any info?
any info?
what would happen if i just left them in the tank? (just wondering) said:If they are flatworms, they are most likely harmless. However, the reddish-brown type can multiply quickly and can become an eyesore in your tank. Then there are acropora eating flatworms that would only be a threat if you have acropora in your tank. If it's the clear type as shown in the pic above, then I wouldn't worry about them.