Growing during fallow period

Gofro · Nov 4, 2021 7:36:09 pm

Hi,

Been a while since I last posted. Had a tank infestation with vermited snails Lao started a new tank. Currently in a fallow period but I have a few corals still in the tank.

However, during this fallow period I’ve noticed stuff growing on the back glass of my display and in the first chamber of my sump.

Can anyone tell me what these are please?? Only seem to have started growing since I have gone fallow.

Many thanks in advance

ajm83 · Nov 5, 2021 9:47:07 am

Hi @Gofro I'm not 100% sure what they are but I get similar growing in my tank. Some kind of sponge or tunicate or something!

Gofro · Nov 5, 2021 1:28:45 pm

Thanks for the reply,

From what I can find on the internet it seems your thoughts are right. Some sort of sponge. Any idea if they’re harmful or indicative of poor water quality??

Thanks again

ajm83 · Nov 5, 2021 5:10:31 pm

Quote from: Gofro on Nov 5, 2021 1:28:45 pm

Thanks for the reply,

From what I can find on the internet it seems your thoughts are right. Some sort of sponge. Any idea if they’re harmful or indicative of poor water quality??

Thanks again

In my experience they're fairly delicate creatures. I thought they were indicative of good water quality tbh!

Gofro · Nov 5, 2021 10:27:32 pm

That’s one plus then I guess. Wonder if they’ll disappear when I add fish back in and start feeding again and the water chemistry changes a little.

Not much info on these at all from what I can see. Be good to know what they’re called 🤷🏼‍♂️

Thanks again for the help 👍🏼

ajm83 · Nov 6, 2021 8:47:11 am

Quote from: Gofro on Nov 5, 2021 10:27:32 pm

That’s one plus then I guess. Wonder if they’ll disappear when I add fish back in and start feeding again and the water chemistry changes a little.

Not much info on these at all from what I can see. Be good to know what they’re called 🤷🏼‍♂️

Thanks again for the help 👍🏼

No worries, sorry I couldn't give a concrete answer. What fish do/did you have? I think some do eat sponges

Gofro · Nov 6, 2021 1:13:04 pm

No worries at all, I appreciate all the help so far.

I had:

2 common clowns
1 starry blenny
1 small Regal tang

Didn’t notice any of these sponges whilst the fish were in the tank.

The regal tang brought ich into the tank and it wiped all the fish out over a 2 week period.

Just finished 80 days fallow this weekend so have a quarantine tank ready to set up ready for some new fish. Hope I have better luck this time. 🤞🏼

ajm83 · Nov 8, 2021 11:05:12 am

Possibly the blenny, they do rasp at rocks. Although mine doesn't seem to bother!

Animal · Nov 8, 2021 9:54:32 pm

They do look a bit like ……….
White spider sponges .
Not 100% but do look very similar.
Dave

Animal · Nov 8, 2021 10:01:28 pm

Or tunicate sponge
Dave

Growing during fallow period

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Growing during fallow period

Growing during fallow period

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