Thanks Tel and yeah that is two aiptasias! i am leaving them for now but i hear they can be a REAL pest!! the other reddish purply ones i have i find really quite beautiful and interesting so they are no problem, unless they pose any threats? bearing in mind i dont have corals.

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Fish
5ft fish only marine tank
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Reptiles
0.1 Kahl strain albino Boa Constrictor
1.0 salmon hypo het kahl strain albino Boa constrictor
0.1 common boa constrictor
0.1 albino granite burmese python
1.0 tiger reticulated python
1.2 eastern indigo snakes
1.1 brazilian rainbow boas
1.1 kenyan sand boas
1.1 albino bull snakes
0.1 wild type bull snake
1.1 crimson corns
0.1 royal python
1.0 blue tongued skink
0.1 tiger salamander