What is that!! A R2R guide to common new tank hitchhikers.

[Crabs McJones]

@Homelander here is one for you to add. Seems to love Euphyllia

Polyclad flatworms

 

[tom's_tank]

Hi I've recently started seeing these worm like things in my aquarium. I don't know what they are and if they are harmful or not? Can ayone help?
Sorry about the bad quality photos its the best I could get.

Thanks!

 

[vetteguy53081]

Hi I've recently started seeing these worm like things in my aquarium. I don't know what they are and if they are harmful or not? Can ayone help?
Sorry about the bad quality photos its the best I could get.

Thanks!

Pics are fuzzy but may be tube worms or spinoid

 

[Crabs McJones]

Hi I've recently started seeing these worm like things in my aquarium. I don't know what they are and if they are harmful or not? Can ayone help?
Sorry about the bad quality photos its the best I could get.

Thanks!

Digitate hydroid?

 

[Hyde2406]

Maybe those tiny starfish.... Hard to see

 

[Ranjib]

hydroid.

 

[rookie 220]

Wondering if anyone, I'm sure someone will lol, be able to ID these guys going in overflow, thank in advance

 

[rookie 220]

Hoping this is better

 

[vetteguy53081]

Wondering if anyone, I'm sure someone will lol, be able to ID these guys going in overflow, thank in advance

Pic Very fuzzy but look like nudibranchs. Clearer pics can determine if good ones like berghia or bad such as monti eaters

 

[vetteguy53081]

Hoping this is better

Still fuzzy/blurry

 

[rookie 220]

Wondering if anyone, I'm sure someone will lol, be able to ID these guys going in overflow, thank in advance

 

[rookie 220]

Sorry sent twice, my

 

[vetteguy53081]

Wondering if anyone, I'm sure someone will lol, be able to ID these guys going in overflow, thank in advance

This is what we all see below
" if in doubt - pull them out " You don't want eggs in your overflows and sump if not good ones.

 

[rookie 220]

Sorry sent twice, my

I'll try get better pic

 

[vetteguy53081]

Do they look like these ? if yes- keepers. if not, start pulling them

 

[rookie 220]

I'll try pulling one out and burrow my son's microscope and see if I can get a better view, doors look like them yet looks like it's hairy but that could be the algae I'm battling now only coral in the tank is a Duncan frag
Tank is just now about 6 mo old with, 2 clowns, one spot foxface, blonde naso and a goby

 

[vetteguy53081]

I'll try pulling one out and burrow my son's microscope and see if I can get a better view, doors look like them yet looks like it's hairy but that could be the algae I'm battling now only coral in the tank is a Duncan frag
Tank is just now about 6 mo old with, 2 clowns, one spot foxface, blonde naso and a goby

Send pic of tank with algae also.
Microscope image may not help but place in a shallow bowl and take pic

 

[rookie 220]

This is what's left of the algae, took majority of it out today, thinking gha

 

[vetteguy53081]

This is what's left of the algae, took majority of it out today, thinking gha

It is GHA and yes typically you pull what you can by hand, reduce white light intensity and add cleaner snails such as:
astrea-cerith-turbo grazer, nassarius and nerite as well as a pencil urchin.
Are you using RODI water or tap from the faucet?
Is tank at or near a window?

 

[rookie 220]

Rodi, in basement but the right side of tank has a window about 12 feet away, north facing window so not much light coming in at all parameters all looking good with nitrite/nitrate at 0
Salinity is little high and working on bringing it down slowly, would like it to be 33 instead of the 34 it's at now